It is said, you will try at least 50 times to see if you can outsmart your foot, but you can't.

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.

And there's nothing you can do about it!

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It is also impossible to lick your elbow !