In this easy magic trick, you take out a coin and cover it with a handkerchief. Because you want to prove to your audience that the coin is still in your hand, even though it's covered by a handkerchief, you allow audience members to reach under the handkerchief and verify that the coin is still there. When the audience members are done, you whisk away the handkerchief and the coin is gone. You show that the coin has traveled to your pocket.