Let's just say you are invited to have tea with the Queen. Gosh! What do you wear? But most importantly how do you greet her?
Your highness? Your majesty? Mrs Windsor?!
There are no obligatory codes of behaviour when meeting The Queen or a member of the Royal Family, but many people wish to observe the traditional forms.
The Queen's 67 years on the throne
The Queen's 67 years on the throne
Queen and tea
Gun salutes will be fired to commemorate the occasion.
Gun salutes will be fired to commemorate the occasion.
Gun salutes will be fired to commemorate the occasion.
File photo dated 19/12/1953 of the Queen and Duke of Edinburgh driving past a crowd of Fijians as they leave a sports meeting in Lautoka. The Queen became Head of the Commonwealth upon the death of her father on February 6 1952 and visited Bermuda and Jamaica, before boarding SS Gothic to visit Fiji, Tonga, New Zealand and Australia between 1953 and 1954.
File photo dated 25/12/17 of Queen Elizabeth II in the Long Library at Sandringham shortly after making her Christmas Day broadcast to the nation. The monarch made her first Christmas broadcast live on the radio in 1952 � the year of her accession � and the annual message was first shown on TV in 1957.
Accompanied by the Queen and the Duke of Edinburgh, Emperor Haile Selassie of Ethiopa, arrive at Buckingham Palace at the start of their state visit to Britain.
Prince Charles waits for his mother as Princess Anne walks up the steps past her father, the Duke of Edinburgh, after they had returned home from a tour of the Commonwealth.
File photo dated 05/04/1955 of Prime Minister Sir Winston Churchill bowing to Queen Elizabeth II as he welcomes her and the Duke of Edinburgh to 10 Downing Street for dinner as the Queen turns 90 on the April 21st.
Princess Anne helps her mother Queen Elizabeth adjust the bridle of the pony 'Greensleeves' in the grounds of Balmoral on their summer holidays
The Prince of Wales, with Queen Elizabeth II and sister Princess Anne, at the Royal Windsor Horse Show at Home Park, Windsor Castle.
Queen Elizabeth II attends the 1957 Army Navy Match
Left to right, Princess Margaret, Queen Elizabeth II, the Queen Mother and the Princess Royal at Epsom, for the Oaks.
Queen Elizabeth II at work, seated at her desk in Buckingham Palace, London. The Queen is seen opening one of the 'boxes' in which documents and papers, sorted for her attention, are sent upstairs by the Private Secretary. Behind the Queen is the Palace switchboard.
Making a happy group on the lawns at Balmoral, are the Queen, the Duke of Edinburgh and their three children Princess Anne, Prince Charles and baby Prince Andrew, on his father's knees.
The Queen is offered food by girls in traditional Indian dress at the Mahatma Gandhi memorial at Raj Ghat, Delhi. Gandhi was cremated here following his assassination. This was the Queen's second visit to the site, the first was in 1961 when she planted a tree.
Queen Elizabeth II, in a white silk faille gown, shakes hands with Peter O'Toole when she meets him and other personalities before the world charity premiere of "Lawrence of Arabia' at the Odeon, Leicester Square.
Queen Elizabeth II smiles as she walks over a carpet of rose petals to enter Claridge's, Mayfair, London, to attend the banquet given by her State guests, King Paul and Queen Frederika of the Hellenes.
The Queen riding side-saddle as she returns to Buckingham Palace, London, after attending the Trooping the Colour ceremony on Horse Guards Parade. The parade is held in honour of the Queen's official birthday.
Queen Elizabeth II, wearing a shimmering frock of blue and white taffeta glistening with diamante and a white fur wrap, is escorted by Mr Bernard Delfont in to the London Palladium for the Royal Variety Performance.
Queen Elizabeth II walking back from the paddock after viewing the runners for the 1965 Derby.
(L-R) HRH Queen Elizabeth II presents the FA Cup to the winning captain, Liverpool's Ron Yeats.
Prince Andrew, who is at the handle of the pram, rocks Prince Edward, watched by (l-r) his mother, Queen Elizabeth II, Princess Anne, the Prince of Wales, and his father, the Duke of Edinburgh.
Prince Andrew offers his brother Prince Edward, being carried by his mum the Queen, a daffodil whilst eldest brother Prince Charles looks on at Windsor on the day of the Queen's 39th birthday.
England captain Bobby Moore holds the Jules Rimet Trophy, collected from the Queen, after leading his team to a 4-2 victory over West Germany, in an exciting World Cup Final that went to extra time at Wembley, London.
Queen Elizabeth II visiting St. Thomas' Hospital, London. During her visit with the Duke of Edinburgh she opened the newly established Dimbleby Research Laboratory and unveiled a commemorative plaque.
Embargoed to 0005 Saturday January 1, 2000 Library filer dated July 1 1969 of the Investiture at Caernarvon Castle of the Prince of Wales by his mother, Britain's Queen Elizabeth II. The depth of the concern by the Government led by Prime Minister Harold Wilson over ensuring security at the investiture is revealed in secret papers that have been made public Saturday January 1, 1999 under the 30-year rule. There was cponcern that the investiture, and the Prince's period of study at Aberystwyth would be disrupted by welsh extremists. See PA story RECORDS Investiture. PA Photo: available b/w only.
Queen Elizabeth II, accompanied by the Duke of Edinburgh (behind the Queen) arrive at the Royal Festival Hall, London for the Royal St. Cecilia's Day Concert in aid of the Musicians' Benevolent Fund and Allied Charities.
Queen Elizabeth II opening the Victoria Line, London's first completely new underground railway for 60 years. With her, from left; Maurice Holmes, Chairman of London Transport Board; F.E Wilkins, Chief Public Relations Officer, LTB; Anthony Bull, vice-chairman, LTB; Richard Marsh, Minister of Transport.
Queen Elizabeth II in her sitting room at Buckingham Palace during the filming of her Christmas Day broadcast to the Commonwealth.
The Royal family on the steps of Parliament Buildings, Wellington, after the State opening of Parliament by Her Majesty the Queen. (l-r) Princess Margaret, Prince Philip the Duke of Edinburgh, Queen Elizabeth II and Prince Charles (Prince of Wales).
A dazzling smile from Queen Elizabeth II in the Chelmsley Wood shopping centre during her visit to Birmingham.
Queen Elizabeth II and the Duke of Edinburgh at Balmoral to celebrate their Silver Wedding anniversary.
Queen Elizabeth II during her visit to the Isle of Man.
The Queen, watched by the Duke of Edinburgh, uses a gold plated camera to photograph her horse columbus at the veterinary inspection on the first day of the 1974 Badminton Horse Trials.
Catherine Cusack of Harrow presents a floral posy to the Queen on her arrival at Leicester Square Theatre. The Queen, accompanied by Prince Andrew and Prince Edward, attended the charity premiere of the Disney film The Island at the Top of the World.
An admirer reaches out to touch the Queen at Preston Railway Station, where she and Prince Philip were boarding a train for a tour of the electrification of the British Railways Anglo-Scottish route between Preston and Glasgow.
The Queen, photographed in the garden of Buckingham Palace during the recording of her 1975 Christmas broadcast. This is the first time The Queen has recorded her Christmas message out of doors.
The Queen in the Regency Room at Buckingham Palace during the recording of her 1976 Christmas Day broadcast.
Queen Elizabeth ll meets Elizabeth Taylor and husband John Warner at a gala dinner in Washington in July 1976
Queen Elizabeth ll toasts President Gerald Ford during a State Visit to the USA in July, 1976.
** Full date not available** Prince Philip, Duke of Edinburgh and Queen Elizabeth II in 1976.
The Queen arriving at Heathrow Central station in London in the driver's cab of a Tube Train, when she officially opened the �30 million Piccadilly Line extension linking Heathrow Airport with London's underground railway system. Pictured with her is Graeme Bruce, London Transport's Chief Operating Manager
A smile from Queen Elizabeth II as she meets people during a walkabout at Highbury Fields during her Silver Jubilee tour of north London.
Queen Elizabeth arrives in Mustique and is welcomed by Princess Margaret in 1977.
(L-R) Virginia Wade curtseys to HM Queen Elizabeth II as the latter hands over the Ladies' Singles trophy to the champion
Queen Elizabeth II on a walkabout among the crowds in Aberdeen, during her Silver Jubilee Tour of Britain.
The Golden State Coach at St Paul's Cathedral after arriving with the Queen and Duke of Edinburgh to attend a special service of thanksgiving for the Silver Jubilee.
The Queen and the Duke of Edinburgh meet the cast of The Good Life at the BBC TV studios in Shepherd's Bush. They attended a recording of the show in aid of the Joint UK Appeal for the Commonwealth Games. The cast are (l-r) Paul Eddington, Penelope Keith, Felicity Kendal and Richard Briers.
Queen Elizabeth II smiles during a presentation ceremony at Windsor Castle, where the First Battalion of the Irish Guards were presented with new colours.
Queen Elizabeth II encounters a Bunny Girl during Derby Day at Epsom.
Her Majesty Queen Elizabeth II with her husband the Duke of Edinburgh and their sons (l-r) Prince Andrew, Prince Charles and Prince Edward at Balmoral.
Queen Elizabeth ll struggles with her hat in the wind whilst protocol demands that Sultan Qaboos stands rigidly to attention during the Queen's visit to Muscat, Oman in February 1979..
Photo: Anwar Hussein
Queen Elizabeth ll, accompanied by Sultan Qaboos, takes photos with her golden Leica camera as she arrives with Prince Philip, Duke of Edinburgh for a State Visit to Oman on February 28, 1979
Queen Elizabeth ll and the Duke of Edinburgh wait to meet Pope John Paul ll in the Vatican on October 17, 1980.
Queen Elizabeth ll and Prince Philip, Duke of Edinburgh exchange gifts with Pope John Paul ll during a visit to the Vatican on October 17, 1980.
Queen Elizabeth II with some of her corgis walking the Cross Country course during the second day of the Windsor Horse Trials.
Her Majesty Queen Elizabeth II and the Duke of Edinburgh after the Queen had declared the new Humber Bridge formally open. It actually opened to traffic 22 days earlier. The Queen and Duke then drove across the �91 million structure, the world's longest suspension bridge, from the Hull to the Grimsby side.
Queen Elizabeth ll is confronted by a row of bare bottoms during a visit to the Solomon Islands in the South Pacific on October 18, 1982.
Queen Elizabeth II and Prince Philip, Duke of Edinburgh glance at each other as they attend an official reception in Papua New Guinea in October 1982.
Nancy Reagan dies at the age of 94 at her home in California on March 6, 2016. In this archive picture Queen Elizabeth ll entertains US First Lady Nancy Reagan on the Royal Yacht Britannia on March 4, 1983 in San Francisco, USA.
PA Library Photo dated October 1986 : The Queen meets Chairman Deng Xiaoping, when she and the Duke of Edinburgh had lunch with Chairman Deng in the Diaoyutai State Guest house in Peking. China's paramount leader Deng Xiaoping has died of complications from Parkinson's disease and a lung infection, the official Xinhua news agency said tonight. See PA Story CHINA Deng. Photo by Tom Bell/PA.
Queen Elizabeth II and the Duke of Edinburgh on the Great Wall of China at the Bedaling Pass, 50 miles north-west of Beijing, on the third day of their State Visit to the country.
** Full date not available** Queen Elizabeth II and Prince Philip, Duke of Edinburgh on the Great Wall of China at the Bedaling Pass, 50 miles north-west of Peking, on the third day of their State Visit to the country in 1986.
Prince Charles is presented with the runners-up prize by his mother, the Queen, following his team's defeat in the Silver Jubilee Cup match against France at Windsor Great Park.
The Queen smiles as she accepts congratulations from well-wishers in Paisley, near Glasgow, following the birth of her fifth grandchild to the Duke and Duchess of York at Portland Hospital in London.
David Campese is introduced to the Queen (Aus)
Queen Elizabeth II during the opening ceremony of the A55 Conwy Tunnel in Conwy, Gwynedd, north Wales.
Queen Elizabeth II and the Duke of Edinburgh at the Guildhall, London, where they attended a luncheon hosted by the Corporation of London to mark the 40th Anniversary of her accession. In a speech she branded 1992 her "Annus Horribilis", when she spoke of criticisms of the royal family.
Queen Elizabeth II inspects the ruins of Windsor castle with a fireman.
PA PHOTOS 30/9/1993 THE QUEEN AFTER THE FUNERAL SERVICE AT THE QUEEN'S CHAPEL, ST JAME'S PALACE FOR MARGARET 'BOBO' MACDONALD, ONE OF HER CLOSEST CONFIDANTES, WHO DIED AGED 89.
Queen Elizabeth II and Boris Yeltsin exchange a smile as the Queen makes a speech during a state banquet held in her honour at the Kremlin's Faceted Hall
Queen Elizabeth II opens the Commonwealth Games in Victoria, Canada.
The Queen unveils a plaque to celebrate the official opening of the eurostar passenger train terminal at waterloo international station, london. she later boarded a eurostar train to Calais for her inaugural trip through the channel tunnel.
Britain's Queen Elizabeth II departs from Wellington Cathedral, New Zealand, accompanied by the Dean of the cathedral Michael Brown, after a consecration service. * A large crowd gathered outside the Cathedral, their cheers for the royal visitor echoing poll results that 58% wanted to keep the Queen as New Zealand's head of state. In results that correspond with three other polls since 1995, just 33% of 1,000 respondents nationwide said the Queen should make way for a republic.
The Queen and the Duke of Edinburgh are greeted by Graham Downing (right), National Chairman of the Royal British Legion before the annual Festival of Remebrance at London's Royal Albert Hall this evening (Saturday). Behind them (left) is Commander Tim Laurence, husband of the Princess Royal. (Reuter rota picture) PA Photos.
BrItain's Queen Elizabeth II walks through the Royal Gallery to attend the State Opening of Parliament Tuesday November 24, 1998 to announce the Government legislative programme for the coming session. PA photo: POOL WPA/RTR/Kieran Doherty.
Her Majesty the Queen meets Bank of England Governer Eddie George at the Bank of England in London today (Wednesday 18th November 1998) during her tour of financial institutions in the City. WPA Rota photo by Fiona Hanson/PA.
File photo dated 09/06/1999 of former Prime Minister John Major receiving the Companion of Honour from Queen Elizabeth II.
File photo dated 12/11/1999 of Britain's Queen Elizabeth II during the opening of the Commonwealth Heads of Government Meeting in Durban, South Africa with Zimbabwean President Robert Mugabe seated behind her. Mugabe was stripped of his honorary knighthood today over his 'abuse of human rights' and 'abject disregard' for democracy, the Foreign Office said.
The Queen at the Chelsea Flower Show, where she saw were a four-poster bed covered in blooms, a Jamaican garden and the Prince's Trust garden, which the Prince of Wales was due to visit. * Mindful of criticism in 1999 when their arrival brought London traffic to a standstill, the royal family went out of their way today to arrive at the Chelsea Flower Show with the minimum of fuss.
The Queen chats with ballerina Darcey Bussell (right), following the Royal gala performance at the opening of the Royal Opera House in Covent Garden, on Wednesday 1st December 1999.
The Queen chats with operatic tenor Placido Domingo (right), following the Royal gala performance at the opening of the Royal Opera House in Covent Garden, on Wednesday 1st December 1999.
The Queen meets Nicky Byrne of Irish boy band Westlife, backstage after the 1999 Royal Variety Performance at the Birmingham Hippodrome, in Birmingham.
John Eales, captain of Australia receives the World Cup trophy from the Queen, after their victory against France in the Rugby World Cup final at the Millennium Stadium in Cardiff. Final Score 35 - 12.
The Queen at Newcastle's Centre for Life exhibition, taking a look through a microscope in the Bioscience laboratory, where IVF treatment is carried out.
Queen Elizabeth II smiles to band-members families after inspecting the civilian "Streetsville Pipes and Drums" band from Mississauga, Ontario, Canada as they paraded on the lawn of Balmoral Castle in Scotland.
Queen Elizabeth II with Prince William (rear left) and Prince Harry (rear right), at St Paul's Cathedral, in London, for the service of thanksgiving to commemorate the Queen Mother's 100th birthday in August 2000.
Britain's Queen Elizabeth II waves from the steps of an aircraft in Perth Saturday 1 April 2000 at the end of her Australian tour. The Queen and the Duke of Edinburgh are returning to Britain after a 16-day visit.
File photo dated 28/11/2001 of Queen Elizabeth II meeting Barbara Windsor outside the Queen Vic during her visit to Elstree Studios where Eastenders is filmed. The two have met again at Buckingham Palace when the Queen made Barbara Windsor a Dame Commander of the Order of the British Empire.
File photo dated 28/11/2001 of Queen Elizabeth II meeting Barbara Windsor inside the Queen Vic during her visit to Elstree Studios where Eastenders is filmed. The two have met again at Buckingham Palace when the Queen made Barbara Windsor a Dame Commander of the Order of the British Empire.
Britain's Queen Elizabeth II surveys the architecture at the Halifax Bank of Scotland call centre at Cromac Wood in south Belfast. On the final engagement of their one-day trip to Northern Ireland, *..the Queen and the Duke of Edinburgh were accompanied around the 45 million waterside building which opened in June 2001, by Northern Ireland Secretary Paul Murphy and enterprise minister Ian Pearson.
Queen Elizabeth II chats to Lady Penelope Romsey at the Royal Windsor Horse Show, Windsor, Berkshire. The event, held in the shadow of the Royal residence at Windsor Castle, was cancelled in 2001 beacuse of the outbreak of foot and mouth disease.
Britain's Queen Elizabeth II is greeted by school children as she visits Londonderry in Northern Ireland for the first time in half a century. Earlier the Queen opened the Maydown Ebrington Centre - a new 2 million leisure and IT project in the Waterside area of the city.
TV viewers will this week get this rare glimse of the Britain's Queen Elizabeth II giving an audience at Buckingham Palace to Prime Minister Tony Blair. * The footage will be featured on Thursday evening at 9pm in BBC1's fourth and final part of "Queen and Country" by William Shawcross. The programme, marking the Queen's Golden Jubilee, explores her relationship with prime ministers during her 50-year reign. Tony Blair is the tenth Prime Minister of her reign - and was born while she was on the throne. Note to eds: Picture taken June 2001, released May 20, 2002.
File photo dated 18/11/2002 of Queen Elizabeth II meeting Madonna at the World Premiere of new James Bond film Die Another Day, in which the American star has a leading role, at the Royal Albert Hall. The pop superstar will celebrate her 60th birthday on Thursday, following a long career of reinvention and controversy.
Britain's Queen Elizabeth II meeting England national soccer side captain David Beckham, (left) coach Sven-Goran Eriksson (2nd left partialy concealed) and FA chairman Geoffrey Thompson, during a reception for the Football Association held at Buckingham Palace. *..The 75-strong England party, including back-room staff as well as high profile players and management, arrived at the Palace in three coaches. The drinks-and-canapes reception was staged in the Blue Drawing Room at the Palace where FA chairman Geoffrey Thompson, along with the England coach and captain, were the first to meet the Queen. Although not a natural football fan, the Queen has been known to become quite animated when following the England team on TV.
The Red Arrows and Concorde fly over the Queen Victoria memorial outside the front of Buckingham Palace, during the fly past by the RAF.
Queen Elizabeth II waves to the crowd at Epsom Downs, 2002, for the running of the Derby.
Britain's Queen Elizabeth II waves to the crowd as she rides in the Gold State coach from Buckingham Palace to St Paul's Cathedral for a service of Thanksgiving to celebrate to her Golden Jubilee.
Queen Elizabeth II, left, foreground, watches as the coffin containing the body of the Queen Mother is put into a hearse following funeral services in Westminster Abbey, London. * Left, background is Prince William, the son of Prince Charles who salutes, right. Back, second from left is Prince Edward.
Members of the British Royal family watch as pallbearers carry the coffin of Queen Elizabeth the Queen Mother during her funeral service in Westminster Abbey. * The Queen Mother died Saturday March 30, 2002, aged 101. After the service, the Queen's Mother's coffin was due to be taken to St George's Chapel in Windsor, where she will be laid to rest next to her husband, King George VI.
Britain's Queen Elizabeth II arrives with US President George Bush for the Buckingham Palace state banquet in honour of the US President, during the first day of his four day state visit to the U.K. * The Queen told President George Bush that Britain and America stood firm in their determination to defeat terrorism.
Britain's Queen Elizabeth II unveils the statue of her mother at the second attempt, at the Grand Military race meeting at Sandown, Friday 7 March, 2003. One tug of a ceremonial gold rope was not enough as the blue satin sheet shrouding the Queen Mother's statue snagged. A veteran of countless unveilings, the Queen stood bemused until sculptor Angela Conner came to the rescue, freeing the troublesome cover.
Britain's Queen Elizabeth II meets John Leese (far left with glasses), who was invited to a Christmas reception at Buckingham Palace. The Queen is throwing a Christmas party for the high-fliers of 2004. Among the 500 guests are the unsung heroes of charity and community work as well as some famous names.
Britain's Queen Elizabeth II is helped down from her carriage by the Duke of Edinburgh as they arrive at the Sovereign's Entrance of the House of Lords for the State Opening of Parliament 23 November 2004, in London. The British government announced Tuesday a range of new measures to fight global terrorism and organised crime, as Queen Elizabeth II set out its new legislative agenda. Anwar Hussein/allactiondigital.com
Britain's Queen Elizabeth II during a service to mark Armistice Day on 11/11/2004 at the Field of Remembrance in the grounds of London's Westminster Abbey. Hundreds of small wooden crosses, planted in the grounds of the Abbey and adorned with a blood-red poppy, bear the name of a fallen loved ones and message of commemoration. Anwar Hussein/allactiondigital.com
Britain's Queen Elizabeth II meets staff at The Royal Berkshire Hospital, Reading, Friday February 24, 2006. In December 2005 the hospital completed an eight-year building project to bring services from Reading's Battle Hospital on to a single site near the town centre. See PA Story ROYAL Queen. PRESS ASSOCIATION Photo. Photo credit should read: Tim Ockenden/WPA Rota/PA.
File photo dated 03/05/2006 of Queen Elizabeth II talking with with celebrity guests Lionel Blair and June Whitfield, at the Help The Aged Living Legends at Windsor Castle, the actress has died at the age of 93, her agent has confirmed.
A file photo dated 20/04/2006 of Queen Elizabeth II sitting in the Regency Room at Buckingham Palace in London as she looks at some of the cards which have been sent to her for her 80th birthday.
Prince Philip, Duke of Edinburgh kisses his granddaughter, Zara Phillips, as boyfriend, English rugby player Mike Tindall, shakes hands with Queen Elizabeth ll at a Buckingham Palace reception for the country's top achievers on December19, 2006 in London, England.
Queen Elizabeth ll meets actress Thandie Newton at a Buckingham Palace reception for the country's top achievers on December19, 2006 in London, England.
Queen Elizabeth ll meets comedian David Walliams at a Buckingham Palace reception for the country's top achievers on December19, 2006 in London, England.
Queen Elizabeth ll meets singer James Blunt and comedian Russell Brand (R) following the Royal Variety Performance at the Empire Theatre in Liverpool on December 3, 2007.
To mark their diamond wedding anniversary on Tuesday November 20, 2007 this year, Queen Elizabeth II and Prince Philip, The Duke of Edinburgh re-visit Broadlands where 60 years ago in November 1947 they spent their wedding night. Broadlands in Hampshire had been the home of Prince Philip's uncle, Earl Mountbatten. PRESS ASSOCIATION Photo. Issue date: Sunday November 18, 2007. See PA Story ROYAL Anniversary. Photo credit should read: Tim Graham/PA Wire
Prince William, Prince Harry and Queen Elizabeth II watch a fly past from the balcony of Buckingham Palace during Trooping The Colour on June 14, 2008 in London, England. Trooping The Colour is the Queen's annual birthday parade and dates back to the time of Charles II in the 17th Century when the colours of a regiment were used as a rallying point in battle.
EMBARGOED: Not for publication before 0001 Thursday December 24, 2009. Queen Elizabeth II prior to the recording of her Christmas Day broadcast to the Commonwealth, in the White Drawing Room at Buckingham Palace.
Britain's Queen Elizabeth II smiles after meeting the artists who performed at the Royal Variety Performance in Blackpool.
Britain's Queen Elizabeth II (L) meets British comedian Peter Kay (R) following the Royal Variety Performance in Blackpool.
Queen Elizabeth II meets American singer Lady Gaga (right) following the Royal Variety Performance in Blackpool.
HM Queen Elizabeth ll, visits the National Memorial Arboretum where she attends a Service of Commemoration and pays tribute to the 112 members of the UK Armed Forces killed on duty or as a result of terrorism in 2010.
Embargoed to 0001 Friday December 24, 2010. Queen Elizabeth II at the recording of her Christmas Day broadcast to the Commonwealth, in the Chapel Royal at Hampton Court Palace.
EMBARGOED to 0001 Saturday December 24, 2011. Queen Elizabeth II stands in the 1844 Room of Buckingham Palace in London, after recording her Christmas Day television broadcast to the Commonwealth.
Britain's Queen Elizabeth II (left) stands next to Australian Prime Minister Julia Gillard (left) during the opening ceremony of the 2011 Commonwealth Heads of Government Meeting, in Perth, Western Australia.
Queen Elizabeth II walks with Queen Elizabeth Hospital's Chief Executive Patricia Wright (left), during a visit to the hospital in King's Lynn, Norfolk, where the Queen officially opened the hospital's new Â£3 million MRI unit.
Britain's Queen Elizabeth walks past Girls Aloud as she arrives to greet the performers after the Royal Variety Performance at the Royal Albert Hall in London.
Queen Elizabeth II, wearing ear plugs, officially opens the the London Paralympic Games 2012 during the opening ceremony at the Olympic Stadium, London.
The Queen plays in a video with actor Daniel Craig as James Bond during the London Olympic Games 2012 Opening Ceremony at the Olympic Stadium, London.
Queen Elizabeth ll shakes hands with Daniel Craig, the new James Bond, at the Royal Premiere for the 21st Bond film 'Casino Royale' at the Odeon in Leicester Square, London on November 14, 2006.
Anwar Hussein/EMPICS Entertainment
File photo dated 13/7/18 of Queen Elizabeth II, US President Donald Trump and first lady Melania Trump walk in the Quadrangle during a ceremonial welcome at Windsor Castle, Windsor. Policing Trump's four-day visit to the UK cost more than �14.2 million, according to figures obtained by the Press Association.
Gun salutes will be fired to commemorate the occasion.
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Upon presentation to The Queen, the correct formal address is 'Your Majesty' and subsequently 'Ma'am,' pronounced with a short 'a,' as in 'jam'.
For women, it is customary to do a small curtsy while men often perform a neck bow (from the head only).
For male members of the Royal Family the same rules apply, with the title used in the first instance being 'Your Royal Highness' and subsequently 'Ma'am' or 'Sir'.