I find the artificial environment dosen't fit with the real situation. Earth and Mars
You are right, you have to be in the right headspace to “pretend” it’s a real date. I think then your best approach is to verbalize what you like. As you do the mini meet and greet, usually sitting on the bed, couch making small talk, as she hints to start to play (caressing your arm, leg etc....) you could say “do you mind if I kiss you? It’s really one of my favourite things, and it’s been a while since I had a great makeout session” or as suggested above compliment her gorgeous lips and say I’d love to kiss you” or look her in the eyes and ask.
Communicating that this is important before the session will also help a great deal. Most escorts are good at reading a situation/ body language and can gradually figure out what a guy likes, but some guys are more reserved, slightly awkward that make those signals hard to read. The nervousness that is normal in an escort encounter can further interfer with picking up the usual unspoken human cues. She may even sense your nervousness around kissing as you avoiding it, possible because you aren’t into it. If non verbal communication is not working, the go to verbal, but if you give a heads up before the session it breaks the ice so to speak. I used to have a lot of trouble verbalizing what I wanted in a session with regard to specific requests as this seemed awkward, but found it easier to do this if I’d informes her before the meet.
Maybe I’ve been lucky, maybe I’ve chosen well, but 90% of the girls I’ve seen have been into dfk with me, and many seem to love a great high school style makeout session as much as me, and gets them really warmed up for the main event.
Of course all of this assumes good-great oral hygiene, aren’t scraping her face / neck with sharp stubble and that you are treating her respectfully. You find tho two worlds different, but they aren’t so. If you can act like a good guy, gentleman like you have on regular dates, again, treating her like the “real” woman that she is, you’ll do well. Most escorts (especially the ones well regarded on this site) are normal people, often exceptionally sensitive and caring people, who do derive satisfaction out of doing a good job and making their customers happy. The only difference is that they do sex work, something that is marginalized by mainstream society.