Singing
It doesn't seem to matter what it is exactly, I'll sing along to it. I do try to curb it somewhat; but, apparently, it drives people dippy. I used to have a good singing voice, apparently, but I don't know anymore. I'm kind of afraid to open my mouth and find out.

Bathroom breaks
I drink a lot of teas, so I need to stop a lot more frequently than most folks seem to. That also probably drives people crazy. It's all right though, because a good stretch of the legs does wonders to help keep a healthy circulation.

Fidgeter
On the other hand, you can count on me for one good thing: I am not a fidgeter. I may do the odd unconscious thing now and then. Who doesn't? However, I don't tap, whistle, twiddle, twist, maim, fold, bend, spindle, mutilate, or otherwise.