How about plain old applause without the air horns, banners, sudden screaming and loud, prolonged cheering?
Uncontrollable, rude crap like this by a few infantile individuals competing for and boorishly demanding attention has turned any event with the word “public” attached to it into a bloody nightmare.
“How about plain old applause”
I guess. My experiences seem to be different from most others here.
I have seen televised soccer matches (not in the USA) where the people in the bleachers light FLARES and wave them around, plus those plastic horns and air horns. Now that’s over the top.