I have a habit of twirling my pen around my thumb and back again. It's something I learned to do in high school, and it's become so second nature that I'm usually not even aware I'm doing it unless someone says something about it.

You can click here to see my dumb pen flipping in action. (You may need to turn off your pop-up blocker.)

I used to think it was kind of neat until I found this site and realized I'm just a pen-spinning hack. I have much to learn.