tisme, in the first minute and 20 seconds, there is no trick. The ball is held up by the magnet. If you were the ball, you will feel weightless, meaning the forces exerting on the ball cancel each other.
The ball cannot make the wheel move any more than you can without touching the wheel. To initiate the movement of the wheel, the ball has somehow to start to move. If it moves farther from the magnet than before, the magnetic force decreases with the square of the distance between magnet and ball, the magnet won't be able to hold it suspended, the ball will fall. An additional force must act on the ball to make it regain altitude but where is the device to produce this additional force?
My first theory is the hand makes small movements to pull the ball back up.