Easy way to learn how to find out what your friend's card is without touching it. Learn it in seconds! Impress your friends!
Put a staple in a glass of water and it will float. Put a drop of water in the glass and what will happen. Why? The soap breaks the surface tension, causing the staple to no longet stay afloat.
This trick is fun and very easy to do. Hold an object at your fingers and show a crowd. Then grab the object with your hand. Open up your hand and the object will be gone!