It really depends on the guy and the vibe he's giving off but I can only speak for myself. I have been approached countless times at the bar's & lounges. I don't go to clubs and never really liked them that much at all so I avoided them. It also depends on age range, Older Women are usually more aggressive with their approaches but younger Women can be just as aggressive but not as "obvious" if that makes sense.
Even now, I get approached and "Opened" by Women when I am out with my Girlfriend alone or if I'm out with my Girlfriend and her other cute friend (Which I call my 2nd GF), I STILL get approached right in front of them or sometimes Women will get VERY close to me and "feel it out" to see if I'm alone or if I'm with other Women.
Overall, I don't go out like I used to in my 20's to mid 30's but back then, I'd say from the ages of 27 to 31, Women approaching me like crazy was the norm. Younger looking, Low body fat percentage, etc. Youth is king.
With that said, Being a Man knocking on 40's door, I just have a chill mature vibe now and that still helps attract Women as young as 19 years old.
Yeah vibe, presence plays massive part, obviously looks, style as well.
Was never into it all the time, but went through a stint of doing esctacy/mdma a fair bit and used to do well then, not just in dance clubs either where a lot of others were doing it. Used to do well on those nights, assume as like you say, vibe, changes body language, demeanour - happy, having good time etc. Obviously if you do too much and look like a mong, grinding your teeth, gurning etc it won;t work out too well with women that night
. I don;t condone everyone does it by any means, but for many I think it would yield decent results, just having a few drinks and some mdma, rather than just alcohol. Can really change your mood, outlook in a positive way if used sparingly.
Long time female aqaintance has pretty much stopped drinking now and just does some mdma when she goes out once a month or so. Says it effects her much less mentally the days after compared to alcohol.