I've lost count of all the girls I've seen and probably can't remember half them, but I will always remember my first.
I was nervous ,but the experience with her was absolutely wonderful. After that I would see several a month until I finally found the perfect one and stopped touring.
I would 100% agree with the advice the others have given. A few points. respect the girls, they are in charge. Don't be mean, small box of chocolates makes a good first impression.
If a shower is offered, take it even if you don't need it. I always sent a text after the meeting to say thanks. Don't let your first review be a bad one.
Best of luck with your first pick.