Back in the day people would get up and shout when they felt the music. You guys need to give it to us on stage so we can give it back to you, it goes two ways
That's the main problem. Jazzmen are expecting their audience to make the show and only then, they will give them a show back. That should be the other way. Musician are there to make the show, then the audience connect with them and the show becomes a whole.