See if you can do it. I couldn't. This is so funny that it will boggle your mind. See if you can outsmart your foot, but you can't. While sitting at your desk, lift your right foot off the floor and make clockwise circles. Now, while doing this, draw the number "6" in the air with your right hand. Your foot will change direction. Note: I recommend doing this in private or else someone might see you and think you need to be in a padded cell.