Secret: Hold your hand as in the picture, balancing a plastic cup on the edge of a playing card and on the tip of your first (index finger). If you do this quickly, for only a couple of seconds, and make it look hard, no one should notice that a finger is missing. Be sure to use a plastic cup and not a breakable glass one. Also, an opaque cup, one that you can’t see through, is better than a clear one.
You will have to practice a bit as there is a knack to balancing the cup with your finger (the secret). You may wish to experiment with different cups to see if some are easier to balance than others. Also, you'll have to watch your angles-don't let anyone view this illusion from the side or back.
