I don’t dance either but sometimes used to enjoy watching from the balcony. I seem to recall that most of the participants were there simply to enjoy the dancing, at very different levels of skill, but a few, who clearly considered themselves very skilful, would take up a huge amount of space, to the detriment of others, and generally give the impression of showing off. I should have thought it was a mark of a superior dancer not to do this, but I actually know nothing about this.