At the Football Game

So, I went to the first football game in my life with some new acquaintances.
It wasn't a very comfortable place to be, because all the fans were too excited to sit down, so everyone had to stand for hours. Also it was cold.
I was still happy to see our school team kept scoring and won and big victory versus Purdue.

What surprised me was not the excited crowd or the game itself, but the non-written rules (traditions) the audience should follow at specific moments, such as take out keys and shake them, shout out swear words, or jump around with music at some points.

The people who invited me to the game.