Here is an excellent video showing how to properly show telekinetic skills. The guy shows that blowing air with an hairdryer has no effect on the wheel under the bowl, nor do a powerful magnet, and he moves the camera all around the bowl to show all sides, and he makes it spin in the directions he says. I'd recommend others to follow similar methods to decrease chances for being blamed as hoaxers by blowing on the wheel, having heat from the hands making it move and what not- here the guy is sitting at a well enough distance too so heat from hands can be out of the question of having any effect enough to create such movements.
http://www.youtube.com/watch?v=H5NwRfMJgOQ&NR=1
Very interesting video I think, and very professionally made to show it's not affected by outside sources such as wind, magnets, heat etc.
