Pasta seems like a no-no to order for a first date. But chances are you're going to find yourself at a place with pasta. Bite-sized pasta like ziti, penne, and farfalle can be a great choice, since you can stab them with your fork and that good grip will help save your outfit from stains.
If you're set on long noodles, stay away from red sauces and order a cream or oil-based sauce in case you do spill. Just be sure to pop a mint after dinner if you order a garlic-heavy dish.