Who is here? by Mario Tarasini

Who is here? by Mario Tarasini
The magician shows a card with a cut out window.
The Spectator selects a card from the deck and signs it if desired.
The magician places spectator's card on the deck, places a card with a window on it, and the the card magically disappears.
The magician spreads the deck and shows that the chosen card appears in the middle of the deck!