The 90’s cult-classic PCU put a name to a well-known concept: “That Guy.” Jon Favreu is a metal head who’s excited to see his favorite band play. So excited, in fact, that he’s wearing his shirt with the band’s logo on it. Jeremy Piven notices this and says “You’re wearing the shirt of the band you’re going to see? Don’t be that guy.” And these, my friends, are words to live by. But how do you know if you’re exhibiting T.G. behavior? To be safe, here are a few things to avoid:

1. If you’re over 50 or under 13, it’s OK to wear the band’s shirt to the concert. If you fall anywhere between those ages, avoid this pit-fall at all costs.

2. It’s ok to sing along quietly to yourself. Screaming the lyrics and pointing at the band while they play is not only annoying, but it makes you look like an axe murderer.

3. Don’t show off your tattoo of the band. Usually this involves wearing a sleeveless shirt of some kind, and unless you came to the concert straight from football practice, there is now reason to do this. And it’s gross. Cut it out.

4. Don’t talk to strangers at the show about the band. You will start talking about what a big fan you are and it will inevitably turn into a pissing contest that only you are pissing in.

5. And for the love of God, don’t yell out song requests. In my decades of concert going, I’ve never seen a band take a request from a shouty guy who drank 6 Jack and Cokes. Plus, you’re always yelling the name of a song they are definitely going to play later in the show anyway.

So for the greater good, you guys, I beg you to not be “that guy.” See it as a common courtesy for the rest of us and for you. We can enjoy the concert and you won’t be universally hated. Cool? Cool.