"oh dollar talk to me!"
EFFECT: You borrow a dollar bill from someone in the audience, then throw it to another spectator. Without looking at the bill you are able to tell its serial number!
SECRET: Memorize the serial number of a dollar bill and crumple it up into a ball. Place it in your right-hand coat pocket.
Ask someone to lend you a dollar. Tell him to crumple the bill into a small ball, so that he can toss it to you. As you are talking to him, place your right hand in your pocket and get the bill you have hidden. Hold it in the crotch of your thumb on the palm side of your hand.
Catch the dollar bill from someone in the audience in bath hands, and get it into your left hand in the fingerpalm position .Bring the bill you had in your right hand into view and look toward the opposite side of the audience from which the bill was thrown. Toss it to someone there and ask him to unfold the bill and look at the serial number. Meanwhile put the dollar bill from your left hand-the one that was thrown to you -into your pocket.
Appear to concentrate deeply and call off the serial number you memorized very slowly and with much effort. Have the spectator who holds the bill verify the number. It looks as if you have read the number of the borrowed bill. Ask the person in the audience who loaned you the bill to raise his hand. Look at him, while pointing towards the spectator who holds the bill, and say, "The gentleman over there owes you a dollar!" This gets a laugh. Have the bill returned to the rightful owner.