I can remember a situation many years ago with my old Morris team on a tour.
We had been dancing with other teams for a couple of hours, and others on the tour were starting to not really watch the dancing any more.
So I got my team up and we danced to NO MUSIC!
Immediately - every one stopped what they were doing and started to watch us dance.

I thought it very interesting, and we did this several other times in later years with a similar affect.

Tim Radford