Here’s how the trick looks to spectators. The magician takes out a deck of cards and separates it into two halves. The spectator is offered each half to be shuffled and mixed. Both halves are left on the table. The spectator is asked to select a card from one pile and then place it into the other. When the selected card is placed into the pile, that pile is mixed.
By simply looking through the mixed pile, the magician tells the spectator the card that he selected.
