(This was written in response to a young man who had met an attractive girl he wanted to ask out on a date to the shooting range, and he was asking for advice on how to go about it.)
If this really is "the girl of your dreams" I have a few suggestions that don't have to do with what guns to bring, as others have given you good input on that score.
1. Maintain an air of quiet competence. People in general dislike motormouthed know-it-alls but are impressed when they see knowledge and skill at work. This is doubly true when the activity in question has the potential for danger if safety concerns are ignored.
Explain, don't lecture, and early on say something like "If I see you doing something dangerous I'm going to stop you immediately. You probably won't, but I'm telling you this now so you won't get upset if I raise my voice. I don't much care about your marksmanship today but I care a great deal about safe gun handling."
2. Do not fawn over her. Pretty girls get this so much they lose all interest in the guys who kiss up to them. New mindset: You are LETTING HER join you in something exciting. I hope the invitation was "I'm going shooting this weekend--it's going to be perfect weather and there's a great range I use. If you'd like to join me I'll pick you up at 8:30, if you've got something to wear that you won't cry about if it gets a little dirt on it" (said with a grin).
When she said "yes," I hope you added "I'm assuming you're not one of those flaky women who thinks 8:30 means 'sometime before noon.' I intend to be at the range by 9:00."
3. Pack up and quit shooting while she's still having a good time. Do not wait until her shoulder or hand hurts or she's tired.
4. After shooting, do not make plans right away to do something else next weekend, no matter how well you think things went. I cannot stress this strongly enough: DO NOT SELL TOO FAR IN ADVANCE. Not even if she rips your clothes off on the ride home. End your first date with her while she's still wanting more, and don't be too eager to plan the next one. This holds for future dates as well. And don't think of them as "dates," think of them as "I'm doing this and I'll let you join me if you behave." New mindset: Welcome to MY world.
5. Be prepared for a test. (Men call this a "shit test," which is a more accurate term, but from now on I’ll avoid the vulgarism for the sake of Internet decorum.) You may get such a test before you pick her up for the date, a phone call at the last minute telling you her best friend just broke up with her boyfriend and needs consoling, so she has to cancel. It may be an attempt to get you to do something different than what you planned. Do not accept this. Call her on any attempt to change plans. Make it clear such behavior is unacceptable. Be ready to say "Next."
Pretty girls have a different reality than you or I have. Their reality is that men almost always do whatever they demand. Believe it or not, the women are tired of this. The "test" is a way to cull out the mediocre males and find the ones with backbone. It's instinctive for women, because it works so immediately and so well. When you pass one test, you will get another, sometimes right away, sometimes later. This usually goes on as long as you remain involved with a woman, but as you keep passing her tests, they become less and less frequent. Be aware of this, and act accordingly.
6. Whenever you find yourself wondering what to say or how to act, and wanting to avoid screwing up because you think this girl is THE ONE, imagine how you would treat the hottest babe in your zip code--who happens to be your little sister. You'd tease your little sister, right? You'd laugh at her and call her on it every time she tried to get YOU to behave the same way she gets all the other guys to worship her and do her bidding. When she was acting exceptionally princess-like, you'd tell her of your surprise that she'd wear such a tight skirt when it made her ass look so fat, or a hairstyle that made her ears stick out. Then you’d tell her you liked the way her nose wrinkled up when she got mad, and would she bring you a soda from the kitchen? If you don't think this works, you've never tried it.
7. Don't get "one-itis." Talk to EVERY girl that catches your eye. Tease them. Let others come shooting with you on other weekends (if they promise to behave.) Pretty girls have lots of options--it just happens. You can have lots of options, too, but it won't just happen. You'll have to see to that yourself.
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