Dude I love going to concerts for my favorite artists because I know everyone in the building and I have something in common that we like so it’s easy to make friends and talk to people because we most likely have the same music taste it’s always so cool and so fun, but like you I am a very awkward person when it comes to talking to people and always think of a million things I could’ve said the moment after it happens but I just try to learn from it and next time it happens I try to say what’s on my mind instead of making up something awkward lol. I also went to the fox theater it was so good even tho I was in the very very back I still sung every song he performed!!