This is one of those rare effects which you can repeatedly perform only to absolutely baffle your audience more and more each time. The effect is simple, you present your audience with a lucky medallion that you have had since you were young. You explain that you can always sense the medallions presence and that you will demonstrate what you mean. You choose a spectator and have her come up. She is asked to hold the medallion in one of her closed fists and she is to hold up two closed fists so that you will not know which hand it is in. She does so as your back is turned so that you have absolutely no idea where your lucky medallion is only except... you do! Not only do you know which hand it's in or not in but you repeat this time and time again only to be right every single time!