I love this effect, simple and direct, packs so small: you hand out three business cards to a spectator, he mixes he cards, he places each card on a different location. The business cards are then turned over and the written prediction matches the location freely choosen by the spectator.
This is Joel Dickinson’s take on the loved Free Will Principle and it is really a good one. There are no funny gimmicks and just a bit of timing and sleight of hand is required to accomplish this little miracle.
The video explanation is really clear and Joel explains also a sort of “impromptu” handling to make the presentation slightly organic. The video comes with a PDF booklet with further ideas and handling of the effect.