DON'T begin eating before the host tells you to start
DON'T put your elbows on the table, but do keep your hands visible on the table and not in your lap.
DO use bread to soak up sauce or gravy.
DO leave a little bit of food on your plate to indicate when you are full.
DON'T turn down an offer of vodka or other alcoholic beverages. It's considered rude.
DO take bites of food in between sipping vodka. To not do so is bad form.
DON'T leave the table until invited to. The guest of honor is usually the first to get up.