I do this thing where you hold your thumb and middle fingers together, and with a quick flick of the wrist, you hit a relaxed index finger against them to make a sort of snapping sound. I do it every now and then, learned it from observation and practice.
I also tend to twirl a pen or pencil between my index finger and my middle finger when I'm doing my homework or I'm in class. This I also taught myself from observation and practice.
Heh...I pick my eyebrows from time to time.
I also run my fingers through my goatee like I'm thinking deeply about something but I'm usually not...
but seriously something unusual bothers me all the time
i can not study in the home i am forced to do it outwhere
means i cant concentrate on the subjectes.