There are some instructions your brain cannot fulfil, even they are as simple.

Just try it.

Just in 2 seconds you can confuse your mind. You will automatically try again and again to outsmart your foot, but you can’t as your brain is pre-programmed.

So lets try it.

1.  While sitting infront of your computer on chair, lift your left foot from 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 you can’t do anything about it. You will remain and remain trying but results will remain same. If you are able to do contrary, must tell me.