i saw kevin and i was kinda close to him (he was diagonal to me with like 3 people inbetween us) and for some reason i didn't see you in person. i saw you on the screen when hayley had the camera during miz biz.
as for the difference:
more annoying people that can't "handle" a concert. there's always the normal "swaying" that happens at a concert and so many chicks couldn't handle it. there was a girl who had her elbows up trying to push my brother when there was no more swaying going on. when she almost smacked me and him in the face with her elbows and i told her to chill, it's a concert people get pushed but don't bring your elbows up. her reply was "don't tell me what to do, it's a concert" well no shit it's a concert, which is exactly why you shouldn't be doing what your doing. she was wigging out the WHOLE time. but it's ok, cuz some gum to the hair was good enough revenge. it was also no suprise that after every song paramore sang she asked her friends "what was that song called" and the one song she knew was *suprise suprise: miz biz. wow that was long, the basic point was that, they couldn't handle not having "personal space".
oh yea, I've NEVER actually FELT my eardrums vibrate from the young girls' high pitched screaming.