While it pisses me off when someone brags about how good he or she is in guitar playing I must addmitt that I do it too. Not like "Hey, watch me play as fast as I can" but it comes when we have this orchestra in school and I play the lead guitar and when everybody else wait for the teacher to say "Let's play" or something they nearly always look at me because I play all the time and I know that I'm not the fastest guitarist on the earth but I'm fast enough, and they watch amazed as I do some sweeps or something like that. And it sucks, because I really would like to be one of the guys who stay quiet and when they play they play better than anyone who brags about his or her guitar skills.

The short conclusion:
I'm one of them who brag, but I don't do that in purpose of getting attention, I just like to play and I play when someone watches me and I like it, but I certainly don't like me doing that. Trying to stop it.. Yeh.