The litmus test is do civvies say the same compliments.
to some punters I have noticed these things really matter to them, others not at all.
If you are asking here I suspect you already know the answer.
You're assuming he has sex with civvies. With civvies they could give a compliment to lure you in and get your attention, the non-committal, non-heartfelt nonsense like nice tie, nice haircut, cool jumper etc. Never happened on a punt.
I said this on another thread, but it's fair to assume the average punter on here has shagged at least 20 women, compared to an inexperienced girl's average boyfriends by and large we are more likely to fuck better and know more skills. Unless I'm just bigging myself up, I'm also more sexual and sexually comfortable than most people, but it's getting to that level of intimacy which is difficult and time consuming.
I personally am good at reading and psychoanalysing people. Despite what some may think, not every WG will give a compliment because it is good public relations, they want repeat custom or because money is involved. Maybe it's just me, but the vast majority don't give compliments. I think anyone who isn't on the spectrum can tell if someone has a good time or not, it is in their body language, their smile, their voice, their level of enthusiasm and their level of being into you.