Make sure you go somewhere where you can rent a table by the hour. You don’t want to have other people wanting to play you for the table or running for change every couple games.
You try to teach her all the things is this thread she will be very confused,it is to much to learn(if she is a true beginner).
Two things she needs to do to improve a lot very quickly.
1.When she makes the actual shot, look at her eyes. Is she watching the cue ball during the stroke?
If so that is the first thing that needs to be changed.Always look at the object ball when taking a shot(unless its a bank or kick or what not but thats another story).This is the first thing I look for when teaching a new player.
- Hold the cue correctly,especially the bridge hand.The best way I found how to explain it is to have them a make a Buckwheat Oh-Tay hand symbol,then place the palm on the felt and slide the stick through thumb and forefinger with the stick resting on top of the middle finger.
Fine, buy my right-leaning, middle-aged Catholic husband might take issue with me dating, nowadays, and he would certainly warn you about how annoying it is to date a left-leaning, middle-aged agnostic. 
You have just described what is known as an icebreaker. When you meet this young lady, I presume of course on her age, notice the shirt she is wearing. Does the cleavage seem to spring forth eternal.
Decide where you want to go play pool with her , yuppie pool halls will usually have names like sharks, or does she want something a bit more intimate. Order drinks like martinis or gin & tonics.
As for the game itself , play no more than half an hour, its a game that as you probably know , she will miss more shots than make. Keep it simple and point to a ball and tell her what pocket to shoot it towards, dont tell her how to shoot it. Most of the times I find that they pretty much get close if not in , without knowing the mechanics of how they got it in.
Plan your exit strategy, cocktails and a light repast will not go amiss here. She wants a date without having to specifically ask for one and possibly be rejected, you being the white knight will of course take the fair maiden on a tour of the field of honour.
Declan
Ingenious. I’m now adding the “ghost ball” technique to my ‘teaching beginners’ method.
Uh… I’m having a hard time visualizing this, but if you’re saying what I think you’re saying, that would certainly not be correct.
First off, thanks all for the advice! I just got back from what ended up as a 6-hour date that went extremely well, much better than I had feared. It was really cool that she was highly receptive to learning how to play well, even by asking for help along the way. I showed her how to choose a proper cue stick, how to do cut shots, and more–very fun, and made me actually look somewhat informed about something.
Afterward, we walked around, found an arcade and played there for an hour, walked along the boardwalk, then capped the night with some cake from a local diner. It went really well!
Then yer visualizing it wrong.
Is that what the kids are calling it these days?
As you should on all your dates, whether they involve billiards or not. Congrats!
My suggestion is to make the process as socratic as possible. Don’t tell her anything without first finding out what her instinct is saying. Don’t assume she’s an idiot - or for that matter let her assume she’s an idiot. Too often people don’t give themselves the benefit of the doubt, and plead total ignorance.
I’m far from an expert pool player, but if I understand these two pieces of advice correctly, I must disagree, particularly with #1. #1 is, I believe, accepted practice for reasonably experienced players and upwards, but for a beginner is likely to be disastrous, as most beginners really struggle to make the cue tip make contact with the cue ball dead in the centre of the cue ball. Failure to achieve this will create unwanted spin that will throw the cue ball off its intended course. But I am happy to defer to more experienced players/coaches - does anyone else have a view on this?
I am an expert pool player and have taught several raw beginners how to play.It improves their game almost instantly.
Hitting the cue ball in the center is easy. Hitting the cue ball in the center in line with the intended point of contact of the object ball is difficult. It’s even harder if you’re not paying attention to the object ball.
Spose I had better list some credentials.
Worked in a poolhall for 7 years,4 years as the owner.
Have ran well over 500 tourneys.
Put together,felted, leveled and repaired over 200 tables.
Retipped 1000’s of sticks.
Gave lessons to 100’s.
Read many books on “How to”
Wanna give all your imaginary friends an update on the pool date?
Oh, I guess you didn’t see my last post 
Here it is in all of its copy and pasted glory:
First off, thanks all for the advice! I just got back from what ended up as a 6-hour date that went extremely well, much better than I had feared. It was really cool that she was highly receptive to learning how to play well, even by asking for help along the way. I showed her how to choose a proper cue stick, how to do cut shots, and more–very fun, and made me actually look somewhat informed about something.
Afterward, we walked around, found an arcade and played there for an hour, walked along the boardwalk, then capped the night with some cake from a local diner. It went really well!
To add to that, we’ve been emailing each other every day since and have plans a couple of weeks from now
Hooray for good dates!
Well done! Seconded on hooray for good dates!
Next date teach her snooker, and see if you can pot the pink.
*apologies for grossness