You show a large frame with a picture of cards spread with their back facing out. You place the frame inside a paper envelope and put it aside on your table or hand it to a spectator to keep. 3 different spectators from the audience select 3 cards. The frame is then taken out of the envelope. Surprisingly, the picture of the cards is the same, with one difference--3 cards in the picture are facing up and indeed those are the chosen cards.