You hand a pack of cards (no jokers) to your friend to shuffle them thoroughly to ensure there is no set-up. Get them to split the pack and divide it roughly into two. They then choose which part of the pack to give you. You spread these cards briefly on the table for about five seconds, stating you are ‘flash memorising’ the order of the pack. Then you collect them up and place these cards out of sight in your pocket. Your friend then names any card in the pack. Say they name the 10♦. You think carefully and state that.