You have to try this

A co-worker sent me this. It cannot be done! Makes me laugh every time I try.

How smart is Your Right Foot?
Just try this. It is from an orthopedic surgeon
This will boggle your mind and you will keep trying over and over again to see if you can outsmart your foot, but you can't. It's preprogrammed in your brain!

1. While sitting where you are at your desk in front of your computer, lift your right foot off the floor and make clockwise circles.
2. Now, while doing this, draw the number '6' in the air with your right hand. Your foot will change direction!
Too funny!