Your mother may have nagged you growing up about placing your elbows on the dinner table. But no one will actually tell you, you have bad table manners when you're an adult.
These are the biggest faux pas you're making when eating with others. If you are accustomed to tucking in before your host, or the rest of the table then you're more than likely going to get a few looks.
Some of the other rules are little bit more obscure but are just common sense. You should never use a mobile phone at the table, and you should clear away your personal belongings, even sunglasses too.
If you're a bread lover then be sure not to eat the whole roll with your hands or double dip in the oil.
With these simple tips you should be able to avoid a major embarrassment!