If you remember Criss Angel being a famous TV magician, you probably also remember this trick. Angel seemed to be capable of levitating a few inches above the floor. Tellingly, audiences were only allowed to watch this trick from behind Angel, and the effect was sustained only for a few seconds.
All Angel really did was step out of the shell of one of his shoes, and hid one foot behind the other. He'd then lean forward with his front foot, and as his remaining shoe lifted away from the floor, it looked like he was floating.