I’m thinking an informal gathering at NEO in Chicago, say, Friday the 10th, starting at around 11pm or so, going til the cows come home, or you turn into a pumpkin, whichever comes first.
I’ll wear something distinctive so I’m easy to find, but I’m groggy from last night’s celebrations so I’ll figure it out and post it later. 
In any case, I’m pretty easy to find anyway, either tearing up the dance floor or people-watching along the left wall (as you enter).
Venue info:
Gothic/Industrial nightclub. 21 and over, $5 cover, good, decently-priced drinks (rum & coke, $4.75, Long Island iced tea $6, no idea about beer, not my thing, please tip your bartender…) If the sub-culture is not something you regularly partake of, you’re still welcome to come, just Please Be Nice to the Natives.
Located: 2350 N. Clark, just south of Fullerton. Accessible by Lake Shore Drive (parking is competitive but generally findable within 10-15 mins), or CTA red/brown lines (get off at Fullerton, walk about 5 blocks east). Next to the Ritz Camera and Urban Outfitters on the corner, down the alleyway. Can’t find it, look up, it has a big neon sign above the alley.
Small cozy space. Things are just starting to pick up and go by 11pm. Lots of regulars: everyone knows everyone else. We’re very friendly and only bite when asked nicely. 
But honestly, I’ve been harrassed and annoyed far less by goths than at any other club I’ve been to. Ventilation is fantastic, so if you hate the smoky-bar thing as I do, you’ll still be fine.
Dress: wear black at a minimum, but if you want to get more dramatic, anything from fetish to cyberpunk to Victorian goes. Leather, lace, PVC, fishnet, tight pants/dresses, you get the idea.
If anyone wants any sub-culture tips n tricks, feel free to ask. Also, please post here if you’re coming. I’ll more than likely be there regardless, but if no one wants to bother, I may well find something else to do.