Shadow Card trick

Harry Anderson`sThe Shadow CardEFFECT: A deck of cards is wrapped with a rubber band (to eliminate any possible sleight of hand). Three spectators peek at the top card and remember its identity. The band is removed and a fourth spectator is handed the top card. The three spectators name their cards. Each names a different card! The fourth spectator shows that the card he is holding is a joker and not the cards named!You explain that just like Lamont Cranston of Shadow fame, you have learned the mysterious power to cloud men`s minds. Although the spectators actually saw the joker, you forced another image into their minds. By way of demonstration the deck is split in half, one packet goes to a fellow, the other to a lady. The fellow glimpses a card in his half and removes it. He is asked to concentrate intently on his chosen card. The lady also glimpses a card in her half, but when she goes to remove it it is not there. It never was! The card that the lady thought she saw is none other than the card being held by thefellow!