This is what magicians call a "mental force." Unlike the card forcing I have described in previous tutorials, to make this trick work, you need to be able make your spectator choose a card with your mind.
Remove the four aces from two different decks of cards.
Hand one set of these aces to your spectator and keep the other for yourself.
Before beginning, place your Ace of Hearts face down on the table, explaining that you are placing one of your aces face down and you want to see how closely you and he are connected.
Tell him you want him to place any one of his four aces, face down, on top of yours. Your wording here is key, as it is what will mentally force the spectator to choose the same card.
Make sure to say "Please choose any one of your aces, like the ace of spades, and place it face down on top of mine." This will seem like nothing but spades and hearts share an odd aesthetic connection.
By naming the Ace of Spades in your instructions, he will be sure to avoid picking it, and because Spades share that connection with Hearts, it is very likely he will choose Hearts.
Ask him to place his other three hearts face up on the table.
Place your remaining three aces on top of his and turn over the last pair to show how you knew he would choose the Ace of Hearts from the beginning.