[seeing a poster for the Enchantment Under the Sea dance]Dr. Emmett Brown: Look! Theres a rhythmic ceremonial ritual coming up.Marty McFly: Of course! The Enchantment Under the Sea dance! Theyre supposed to go to this. Thats where they kiss for the first time.Dr. Emmett Brown: All right, kid. You stick to your father like glue and make sure he takes her to that dance.