I sit like L with my feet up on the chair (not in the same position though). I hate how you can't sit like that at my school.
Dude, I do that everyday in AP Euro.
Hell, last night at movie night in AP Euro (we stay after school and watch a movie, with popcorn and drinks), I dragged my teacher's couch out, and me and a couple girls were just laying on it, with our feet up on other objects near us.
same
I twirl/wrap my hair around my finger :\
I do too, or I just push my bangs more to the side.
I just have to be doing something at all times.