This is an embarrassing topic. But over the last month I have really noticed it. He doesn't really eat with his mouth closed and it bothers me quite a bit. I can hear him smacking his lips together, the food rotating in his mouth, and it's pretty loud. On top of that he does things like lick his fingers and occasionally burps. It does get annoying. But the thing is that I know he would get pissed if I told him. I have told him about the licking fingers and one time he ate a bread that fell on the floor. He gets pretty pissed when I tell him that he does these things. But one time a friend I brought home after school noticed it. But the thing that really bothers me is how he eats with his mouth wide open and you can hear it. Has anyone ever known someone in their family that does it? Don't mean to sound mean, but I find it annoying!