Poster card forecast

The magician reveals a prediction. Then he lets a spectator choose a playing card. He's certain of his prediction and shows it to his face, but it turns out to be white!
The magician closes the prediction halfway, says a magic word and when he opens it again and shows it, the face is identical to the chosen card!

• Simple, takes up very little space and is visible even from a distance!
• The opened poster measures 30.5 x 45.5 cm. The deck of cards is not included.