This is a useful prop to add a little humor to many prediction-type effects.

Open the wallet and show your "Prediction." Set it up in full view an go into your mental routine. When you are ready to reveal your prediction, again open the wallet. This time you hold it so that only one spectator can see it and you lift the "Prediction" Flap so the printing on the wallet is visible. Say, "Will you please read out loud what that says?"

And the poor soul says, "I don't know how to read." You say, "Oh, I'm sorry," and you remove the prediction paper form the wallet. Hand it to a different spectator saying, "Will you read this prediction?" They then open and read your correct prediction, bringing your magical effect to a successful conclusion.