if you had a few dates, then maybe sex is a good idea to end a date
movie, cofee shop to talk, arcades, bowling, pool, walks, night walks, dinner, lunch, make her supper, rent a movie, cards, go to a comedy show, music concert, go see a play or opera or ballet if she's into it, go to the bar if you dont want to talk(music is always too loud), play videogames(if you're both into it), breakfast, make out, almost any sports as a couple... like bike, frizbee, running, walking, golf, target practice, skating, and finaly, visit shit in your town or out of town that is unique.