Women prefer venues that focus on culture and less destructive social interaction. Retro nightclubs fit the latter category. The female to male ratio is about 2:1.
Previously I had been as inconspicuous as possible, but the last couple of nights I actually went formal. And last night I tried to get close to the live act as it was someone I really liked.
If you are male, well dressed, alone, and CANNOT DANCE, it is not a good idea to hang out near the dance floor at a swing dance nightclub even if you do like the music.
I had four different women try to drag me onto the dance floor and none of them believed me when I said I didn't know how. It started getting uncomfortable and for the first time ever I left before the band had finished.