Here’s what happens:

It’s always more intriguing when it’s done with the person’s own deck of cards. It doesn’t have to be a complete pack, and you never see anything. The deck is shuffled. The participant selects his or her own card. It’s lost in the deck; even the player doesn’t know its exact location. The person is asked a series of questions about their card, and they spell the answers, dealing cards as they do. Here’s the catch: Each time, they can lie, or tell the truth. The performer never knows. Yet somehow, they end up on exactly their own card!