This is very odd. 

1. While sitting at your desk, 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.

Try it.

I told you so. And, there's nothing you can do about it! 

The instructions were written for right-handers, but they work for us lefties as well...  Just change sides, but still go clockwise.

Malcolm