I don't know if you have seen the routine, but it's on Kuffs' video "Mind Stunts", and I have also earlier written a review here.
Now, I have performed this trick several of times now, and the reactions I get, are very strong, each and every time. So if you want a impromptu routine, which tiny sleight of hands and basically "easy to do", but yet "strong and effective to the limit", go for this trick.
Just wanted you to know
