As a frequent gig-er, it makes me laugh out loud when I see 2 kinds of people.
1. Teenagers who cover their ears from the moment the band just start to play. They thought they were cool to be in a rock show but did not know what a “rock show” means. L-A-M-E.
2. Middle-age guys who jump up and down and sing along so loud as they were kids, especially in those 30-something anniversary / reunion tours. R-E-S-P-E-C-T.