Memorize the fifth card from the top of the pack. Fan some cards out (20 - 30) to form the letter Q. The tail of the Q should have the same number of cards as the memorized card from the top (i.e. five).

When forming the Q start the circle of the Q in an anti-clockwise direction and then add the tail of the Q, so that where the Q joins the circle your memorized card is the fifth card in an anti-clockwise direction.

Ask a person to select any number between 6 and 18 and to count that number of cards commencing at the bottom of the tail and going round the circle in a clockwise direction, stopping at the number selected.

Ask the person then to count back round the Q in an anti-clockwise direction by the same number, but this time missing out the tail of the Q and look at the card landed on without showing you (this should be your memorized card).