[Emma]

Apart from the teacher and taxi dancers being generally fabulous:

-The class atmosphere was laid back and unthreatening.
-Everyone was welcoming and friendly, which meant it didn't matter that I didn't know anyone.
-People asked me to dance even though I didn't have a clue.
-People didn't care that I didn't have a clue.
-I got in half price for three weeks.

I think that the friendly atmosphere was the most important, once the cheap entry got me through the door. Smile at your beginners, and ask them to dance.