You offer to play a simple gambling game with your favourite spectators - whoever touches the back of the highest value card in a shuffled deck wins! And, because you're nice, you give them 3 chances to win against your one. Despite the ridiculously fair conditions you won't be surprised to hear that the outcome is a little unexpected - yep, the four randomly picked cards are the four aces!

Jack's ingenious handling makes this routine a breeze - and you'll be busting this out within minutes of learning it.