The magician will now demonstrates his power of ESP. The assistants then rolled out a large writing board. He also has a small board for the audience. The assistant hands out the chalk and instruct the audience to draw a shape on a small slate. Her choice is totally random. The assistants then put a curtain around the large slate so the magician has no way to touch it with a chalk. Using his power of ESP, he concentrates and writes in the thin air. When the curtain is lowered, it is the same shape that the audience write! Amazing!