Make Paul choose for you between two pictures (of your favorite sport teams or of, let's say...the two girls you want to go out with). Paul will then swim in its aquarium toward the box featuring the winner's picture!
Remarks about the translation
This is an explanation about a game featuring Paul the Octopus. In the game, the player has to select two pictures, and a virtual octopus swims in a virtual aquarium to choose one of the pictures.
Haz Paul escoger por ti entre dos imágenes (de tus equipos de fútbol preferidos o, pongamos, de las dos chicas con quien quieres salir). Entonces Paul nadará en su acuario hacia la caja que tiene la imagen del ganador!