This is a great piece of mentalism. I used it half a dozen times over the weekend after learning it.
It is better suited for low-light conditions. It achieves the best results when you create a strong
frame in the mind of the spectator as to why this is happening and bring the crowd on board to
support the fact that you did not touch the participant. Can also be done as a one on one trick,
I've played with this successfully by having the mark look into my eyes to misdirect the event
happening in their hand.