Hey Man,
Check the subject line, above.
You are treating this like a real-world date! C'mon man, you both know why you're there and the time you have available.
It's definitely appropriate to talk for a few minutes. Check with her in advance about wine , chocolate or fruit. Be nice and keep it light. During this time, I tell the provider that I respect SWs, which is true, and appreciate that their job is difficult. Assure her that you are a good guy, as you should be, and that you will treat her well. Ask her what things she does not like, or allow. (You should know this already from her reviews in TER.) At this point, you should be sitting on the couch or bed and can begin kissing and caressing. NOTE: This phase should be no more than 15 minutes.
If, as Ms. Scarlett suggests, she's keeping you at arm's length, be honest. Ask her if there's a problem, if it's something you can quickly remedy, do so. If she's still keeping you at arm's length, ask for your money back and and suggest she leave. If she will not return your money, definitely don't get physical. but insist she leave, or you leave as the case may be. Note: I've seen about 50 women and had to do this only once. Follow-up with an accurate TER review of what happened.
Basically, you should only see women with reviews on TER, so you know that the provider genuinely provides.
Good luck!