Around 32 seconds he waves the arm over the coin and momentarily you loose sight of the coin, this is when he swaps the coin around with his own coin (A magnetic coin) .
Around 1 min and 06 sec, with the help of his magnatized ring he picks up the coin ontop of the glass, and drops the one under the glass on his hand.
Around 1 min and 08 sec watch his fingers of his right hand. He's making sure he holds on to the coin in his hand. Again putting focus on the one below the glass, while he's getting rid of the coin in the other hand.
He's holding it with all except his index finger.