I tend to make jokes when I'm nervous, so the awkwardness wasn't really a problem for doing that, but it wouldn't work if the jokes are inaudible.
It doesn't help that I have never really felt comfortably being physically close to strangers. I'll put up with it on the subway, but that's a purely utilitarian thing. I suspect alcohol would help with that, but I don't drink anymore (and never drank that much).
I certainly don't want to diminish your enjoyment for this, I'm just saying that every time I've gone to a club it's the worst moment of my life. I absolutely hate everything about it.
[1] This isn't meant as self-deprecating or fishing for compliments, I'm perfectly happy with my body. I just acknowledge that I was probably never going to be a male model.
The thing about the drugs is it only heightens the experience. It's like salt on your food. The ingredients still have to be good. I found the drugs made it great but that's because I loved it anyway. I've never understood people who say "you have to be on drugs to enjoy it". The only drug like that is alcohol, the drug that numbs you enough to make deeply unpleasant situations tolerable.
For me the great thing about 30+ is not having to go to alcohol venues and do all the various pre-mating rituals. But I also don't go clubbing any more because I go to bed before midnight. Still love the music though (trance, as played by Oakenfold and Paul van Dyk).