That is a good trick, but I think this one a friend emailed me is even better. Maybe its old, and you guys have all seen it, heres roughly how it goes.....
A page opens with David Copperfields face, then below that, they deal out to you 5 or 6 playing cards, face up. You are then asked to just silently think about one of the cards. ......Any one....for about 5 seconds.
Then you click on a button to see if the card you were thinking about disappers from the others.
It always does.
How the hell does that work?
I have it in an email, but cant post it here, because I dont know how to convert it from a microsoft powerpoint slide show. But maybe a moderator can receive it, and post, if its worth it.