Restless leg in both legs, can be done voluntarily but often shows up on its own.
Am left-handed, but was taught to do most things right-handed. I use a fork and spoon in right hand, though I can use them equally well in left hand with practically no training. Oddly, I cut my food (ex. steak) with the knife in left hand but when cutting up food to cook, cut it with the right hand. When I learned to use chopsticks some time ago, I could use them equally well in either hand (at the same time, too), but decided to stick with my left hand since that's my dominant hand. Now I can barely use them in my right hand. Go figure.
I stroke my chin a lot, while in deep thought, making decisions, listening in to a conversation, etc.
I twist my neck to crack the joints, even when the joints don't need popping. Usually happens when I'm irritated or feel out of my league.
I overanalyze EVERYTHING. Even when I try and stop myself from doing it, it just happens until I either find an acceptable solution/answer or just overload myself.