In my experience, each of the wonderful women that I have met in life are different. I suspect just like us boys.  Some will scream (sometimes undoubtably fake) some will just shake and make no noise.  Ive had the pleasure of a long relationship with a woman whose vagina will just throb like its going to explode..... no question about that one being real!!  I have found another tell tale sign is often when they have a really powerful one ---- they get instant goose bumps!!!

I've read that the anus exhibits involuntary muscle contractions in a woman during an orgasm. I've always been too much into the fun to sick my finger up there to check. Seems like such a move could break the mood too. (Or maybe not.)

Hell, even I have faked an orgasm. I would like to think that I am able to bring providers to orgasm. But it sure seems like the shorter the session, the faster they are able to climax. Maybe it is just a coincidence.
I saw one provider that kept giggling and squirming during DATY. I didn't think I was getting anywhere so I stopped. But as soon as I stopped she demanded that I continue. I don't think she O'ed, but I guess she enjoyed the licking I gave her.

still in high school, but here?     Not not much.

Assume, true or not, that they ALL fake it, and play along if you want to enjoy the fantasy they're trying to provide.

I know that isn't 100% proof, but some ladies get very wet and even squirt. Even if it isn't the full O, they sure are having fun.

When I'm inside.  The little guy doesn't cause one in real life so the chance he caused one in fantasy life is zero.  As for daty I'd say really wet and the ladies favor intensifies is the proof it's real.  But what do I know

..... that some do and some don't. Personally no I don't if I don't get one I don't get one but i'm not unhappy about. And people cum different ways but usually you can tell with vaginal muscle contractions don't go off sound alone.... since some cum loud, breathe shallow or you don't hear anything. If you really care if she gets one or not bring a toy or suggest she does.

I don't expect providers to have 5 O's in a day if they see 5 different hobbyists. I try to be realistic and not let it become much of an issue. I am paying for myself to get off, lol.

There have been a few times when I know they O'd. The telltale signs of the flushing of the neck and chest, panting, and one who broke a fingernail grabbing the sheets

If it happens it happens. If not, oh well.

The fantasy of her enjoying the session is the most important thing to me. That's much harder to fake than an orgasm. Without that, might as well stay home where at least one person will be having a good time.

No need 2 fake!

My pussy gets super soaker wet!