Lets see, I don't have a lot of bad habits, but I like chewing on my tongue at school and teachers think I am chewing gum.
Chewing on your tongue that is weird.
I constantly have to make a weird noise which pisses off my teachers
i can't sit still and i like to beat on my desk this got me detention (after school)
I always chew gum with my mouth open because I can't help it xD
I always have to move, some how, and I can't stay quiet very long. xD