TheMagicTeacher.com - http://www.themagicteacher.com
Predicting A Coin Toss
http://www.themagicteacher.com/articles/585/1/Predicting-A-Coin-Toss/Page1.html
Debjit Chaudhuri
I'm a 16 year old street magician. I have performed on the streets of India and you can check them out on YouTube. For now see my other articles! 
By Debjit Chaudhuri
Published on 01/13/2008
 
You flip a coin and when it lands you know the result.

Predicting A Coin Toss
Beforehand you place some drops of water on the heads side of the coin (I use aftershave as it is cool).

Now when you flip it, make it land on your left hand and put your right hand on top of the coin. If your right hand feels the water, it is heads and if it doesn't it is tails!