Take tricks with high cards. If you have to take a trick, use the higher of your cards to do it. You can use the lowest card in your hand to lead the next trick. Opening with a low card will often keep other players from ducking the trick by playing a lower card. Ducking, or avoiding having to pick up cards, usually helps your opponents.
Don't pick up hearts or the queen of spades. You only want them when you are trying to shoot the moon or trying to prevent someone else from shooting the moon.
Shoot the moon. In Hearts, a player who "shoots the moon" has amassed all the available hearts and the queen of spades. Your opponents automatically earn 26 points. Your score remains unchanged.
Pass high cards. On hands that begin by passing cards to an opponent, pass aces or face cards if you can.
Count cards. Keep track of played cards—particularly the queen of spades—and whether hearts have been broken. That way, you know if an opponent might be preparing to shoot the moon.
Hold on to the ace of hearts. Almost no other card gives you so much control, especially over situations such as who shoots the moon.