I agree with the earlier post about Larry preferring to shake hands and chat. I also wouldn't approach Larry if I saw him out and about, as opposed to being at a show where he is 'working'. That seems to make a difference to him, where it doesn't so much with the other three. I'd never bother any of them if I saw them eating dinner or out with their families or something. But if I see Bono walking down the street alone, I don't think I'd be able to leave him be. You just have to try not to flip out and scare them, lol.