Ideally the girl should have active social media presence and preferably a website.
She should have reviews on TER or at least multiple reviews on Private Delights by members who've posted multiple reviews. PD reviews are mostly bullshit because the members usually fear retaliatory feedback, but if someone is flat out catfishing or stealing deposits, guys will post that.
You will be asked to verify, probably with a selfie holding your ID. Most will be okay with you hiding everything but your name, date of birth and the photo on the ID.
You may be asked for a 20% deposit, usually if she's hosting incall at a hotel just for you to cover the cost of the room.
Shower right before you go or have her over.
If it sounds too good to be true, it's a deposit scam or the person is trying to lure you over to rob you. A 9/10 girl does not fuck for $400 an hour in the U.S. (though in Eastern Europe they do and even cheaper and escorts are overall less expensive in Canada too).
When you reach out, have your message planned out. Several escorts have shown me the messages they get from borderline illiterate guys asking "u free rn?" or "can you do 1 hr for $300 and if it's good I will pay you more next time?" or just "hello."
Send something like:
"Hello, Jessica. My name is BackgroundWorld and I'm 30 years old and white. I saw your ad on Tryst and I'd like to see you on Thursday, October 30 for a 2 hour incall."
After that the ball is in her court and she'll respond yes or counter with another date/time and her verification requirements. Since you've never done this before, I would add in your message that this is your first time so she knows you don't have references. If her ad doesn't have prices, ask her rate as well.
Obviously I don't know your age or ethnicity, so just put whatever it is, but most escorts request that because some won't see very young guys or black guys.
Everyone has their own opinion, but I've found
https://tryst.link and
https://privatedelights.ch to be the best sites as far as provider selection and lower number of scammers and catfishes, though they still have plenty.
If you can afford it, book at least two hours. Aside from the fact that an hour with a beautiful woman goes fast, if you have two hours you can afford to spend a few minutes getting to know each other without significantly cutting into your fuck time and you'll have time to pop more than once.
A good provider won't try to waste your time, but some will try to talk through most of the session so they don't have to fuck long. It hasn't happened to me yet, but I've read enough reviews to know you need to nicely guide them to bed if that happens.
You're not expected to tip, but of course they love it. My rule of thumb is if I'm seeing a $500-$600 girl I tip $100 per hour. For very high price girls, like $800-$1,000 an hour, I feel they priced themselves well enough and I don't tip. I did tip one of those $200 because the service was amazing.
Also, you probably won't see this in any advice thread, but the guy who mentored me in this hobby told me if you ever find that you're catching feelings for an escort, stop seeing her. See a bunch of other providers instead and maybe see her a few years later, if at all, because you don't want to love a woman who only fucks you for money. It turned out to be excellent advice because my second escort ever was the ultimate GFE and I legit felt like I'd just had the best first date of my life, so even though she was incredible, I never saw her again.