If you think that birthday surprises in the form of parties are so outdated, then you are so wrong. Well, maybe you’re not wrong, but you’re just not experiencing the right kind of surprise parties. The whole jumping out from behind the couch and screaming “SURPRISE!” thing is old school, and no longer necessary. What sets a good surprise party apart isn’t the big reveal as much as it is the planning and the attention to detail. The best part about a surprise party is that the guest of honor is not involved in the planning—you get to catch them off-guard, shock them, do the dirty work on their behalf, and treat them to a celebration with everyone they love. And science supports the fact that people love a good surprise.