1. SMELL GOOD.
Deodorant, brushing teeth etc. Seems obvious but you'd be surprised on occasion.
2. SWEAT MANAGEMENT
A good night of swing dancing can be a bit of a sweaty enterprise, so consider bringing a towel or handerchief or even a spare shirt or two - especially if you are like me and sweat like a pig.
3. TWIRLY DRESSES GENERALLY REQUIRE "DANCE PANTS".
It may seem obvious but if you are gonna wear a twirly dress that flies up when you spin, more power to you, but make sure you've got some coverage. It can weird people out if you are flashing everybody, even if you are cool with it.
4. GENERAL DRESS CODE
This differs from place to place, but in general feel no need to be mr. or mrs. vintage. Generally DJ'ed dances are more casual than live band dances. Mondays at Rhythm Junction will be pretty casual, prob good to avoid sweatpants, but jeans are cool. For a big dance like the Uptown Strutters' Ball, a suit or nice dress makes sense if you have it handy.
5. IF YOU ARE AT A DANCE AT A BAR OR A RESTAURAUNT - BUY SOMETHING!
Especially if there is no cover, if there's a tip jar for the band drop a couple bucks in, if it's a restaurant grab a bite, if it's a bar, a drink. Even though dancers like to think of themselves as free entertainment, it costs $ to make a dance happen anywhere and keeping the bar and the band happy is not only the cool thing to do, it keeps our venues open so we can keep dancing.