There is actually always something going on LW-wise in New York, but we don't publicize most of our events (there are weekly Tuesday meetups, and bi-weekly self-improvement meetups on Sundays). Most of the time we're pretty close to room capacity (around 10-15 people showing up in a smallish apartment), and for the past few months we didn't have many high quality presentations that seemed worth advertising. (There is a private mailing list where we announce most of our weekly discussions)

Historically, the Open Mic tends to have around 15 attendees. We've actually been on hiatus for a few months, and this is our relaunch at a new location. I've been doing a lot of promotion this month at new venues and expect to pick up a few more people. Many of the people (about 2/3rds of the regular attendees) are not actually LW-folk. Part of my goal is to expand rationality into the sister-spheres of skepticism, humanism, etc.

I manage the rational ritual mailing list where artistically and ritually inclined LW-folk (and some non-LW folk) collaborate, both on individual works and on larger events. You're welcome to join there, and I'd be up for skyping individually if you'd like.