Christopher Williams - Thought of Cards Across

20 cards are removed from the deck. 10 are turned face up and the spectator is asked to think of 1. They are then placed face up next to the spectator, The other half are counted to still be 10 cards before the spectator names their chosen card. Now, there are 11 cards! Their thought of card is inside! This is then repeated once more with another only thought of card moving across magically.