Does your family eat dinner at the kitchen/dining room table? Do you enforce any "table manner rules"?
We always "fix pretty hands"(put hands together like praying) and say grace. I also don't let anyone away from the table before everyone is finished eating(that doesn't mean they have to eat ALL of the food on their plate-just means they can't get up before we're all ready to get up). I'm not going to be incredibly strict with table manners, but those are two of my "rules". Oh and we're trying to teach Evan that burping at the table is really not OK. :)