Magician shows four different cards bearing names of four different drinks. He hands over a sealed envelope containing a prediction to the spectator. Then he deals the four cards on the table separately. Spectator selects one card. Magician asks the spectator to see the prediction card. The spectator is surprised on opening the prediction because it read Milk, which was not one of the drinks. He is asked to turn over his selected card. Surprise - it matches the prediction.