I saw a Pearl Jam bootleg video, and the bassist, Jeff Ament, and Eddie Vedder started to headbutt, sort of. They leaned the tops of their heads against each other, while being bent over, and sort of pushed each other back and forth. It did look kind of gay, but cool at the same time.

I think it looks cool when band members dance together or whatever, like playing back to back, or everyone getting together in a circle and someone dancing off in a corner.

Also, I think it's cool how Vedder climbs up around the stage; in the video I saw, he started to climb around and up into the catwalk above the audience during the solo, and then he climbed back down, body surfed and scrambled back to the stage, grabbed his mike, just in time for the singing to begin again. That was really cool.