For a few years, I organized summer contradance flash mobs in NYC. We’ve danced in such locations as Grand Central, Union Square, Washington Square Park, and Madison Square Park. We usually draw a sizable crowd of onlookers, we hopefully get some folks interested in contra, we occasionally get hassled by law enforcement (that only happened once!), and we always have a blast!
If you’re wondering what goes into a contradance flash mob, or want to put on your very own, check out my Contradance Flash Mob How-To, i.e. some notes from my experience organizing flash mobs that may be useful to others.