Effect: To guess someone's card by memorizing order of deck.
Preperation Before the performance, set the cards in this order: 8, K, 3, 10, 2, 7, 9, 5, Q, 4, A, 6, J. Also in suit order: Clubs, Hearts, Spades, Diamonds. To remember numeric order simply memorize this: "8 kings threatened to save 95 queens 4 1 sick knave*." To remember the suit order, use CHaSeD (Clubs, Hearts, Spades, Diamonds.)
When someone picks a card, sneak a peek at the card above it. Now you should know what their card is. You can also let them return their card, and look for a card out of place.
Editor's note: "knave " is an old word for knight, which is the same here as the Jack.