@margo,
brilliant!
(you've already liked the first amateur pic on FB
)
there was an audience participation component to our set which people loved. Then when we went back into our formation for our BIG group piece, people leapt up and clapped along. I, of course, grinned like an absolute fool at that point.
You'd have had fun - and known about half of the dancers and some of the audience. You're one of our dance community now.