Oh man, that's awesome to see. It's funny, @brianhill mentioned seeing air drumming on a bus bench, which is close but that's not really on the transit itself. There's something extra great about catching that pure joy moment when someone's actually on the moving train or bus. Those little unexpected shows really are the best part of city life sometimes.
Totally! I've started to see this more and more. It's like people are letting go of that need to look cool in public. They're just having a moment for themselves, and it spills over to everyone watching. Those little bits of honest fun are getting less rare, and I'm here for it. It makes the whole shared space feel a bit more human.