This guy is pretty cool to watch. He has a ton of videos. He tries to show people how Cold Reading works, and how subliminal language can screw with peoples mind.
I had a friend who recently went to a "reading" where the person is a medium between you and the spirits, and they all totally believed what happened. So they definately found this very interesting considering they all just totally fell for their readings
http://www.youtube.com/watch?v=btP_vy5cQq4
http://www.youtube.com/watch?v=befugtgikMg
http://www.youtube.com/watch?v=6bkleuxpvxY
and best of all:
http://www.youtube.com/watch?v=k_oUD...eature=related
