AHHH MY WORST HABITS! I JUST THOUGHT OF THEM!!! >.< It makes absolutely everyone around me laugh their heads off. =_= It's so embarrassing, but since it utterly does not apply in internet conversation, I'll tell ya'll.
1) I have a terrible habit of "repeating" what I, or someone else just said. '_'; And it's not like I say it out loud, I just mouth it, like, if I say, "That's so not cool," I'll mouth it again once I'm done, or if someone else says, "I know it sucks so much!" Then I'll mouth that once their done. xP And the worst part is, it's so automatic now, I can't even feel my mouth moving!! x_x
2) And, another bad habit is when I'm eating and talking to friends at lunch...>.< I'll take a bite of whatever I'm eating, put my hand in front of my mouth and talk. It's so automatic now that I forget that I should probably say what I have to say before putting food in my mouth, that way, I don't even have to put my hand in front of my mouth.
3) Just recently, from being alone too much, and talking to Shiney, David, Saiko, and Ethan too much on MSN, I've begun to talk to myself. o O;; Yeah freaky, I know. But it's not the 'random' talk to yourself, it's the 'repeat what's on the MSN chat board' talk to yourself. If Saiko makes me laugh (which happens too many times to count) I'll laugh and repeat what just made me laugh. And, now, since my brother's come home from college...I'm not alone during the day anymore. x_x He thinks I've gone insane because I laugh without caring and talk to myself and yell at people online in the most random of moments. And when I'm watching anime, I'll repeat their lines. x_x I swear I'm going to become a mime when I grow up.
4) I chew on a lot of stuff. < <;; Like, when I've got a set of headphones on, I'll loop the cord and put it between my top two front teeth and my lower front teeth, and simply chew. >< I've broken two headphones by doing this. Another example of me doing this is when I've got a phone in my hands. I'll chew on the antennae if I'm bored, and if I've got a seatbelt on, I chew on the seatbelt. xP Pretty odd habits, even though most of them involve repeating myself and others.
xDDD
My Theory for the First Bad Habit: I think it's because after someone finishes talking (or when I finish talking) I repeat whatever they or I just said in my head, as a passing thought to register it, and sometimes dream up different reactions, but the problem is, as the thought passes, my mouth thinks I'm trying to say it, and moves, but since vocal effort is required to make any noise come out, I simply mouth it. x_x It may not seem very embarassing, but think again, once one friend starts laughing at how my mouth is constantly moving, the rest of them start, and it sucks, even though it doesn't really happen all too much anymore.