If you want to go to concerts you have to behave certain ways. I have been seeing sort of a lot of concerts lately!
I usually get a treat and make it last for the whole show. I say to myself “I am going to savor this.” And then I do. I never eat treats fast. I always can savor them. 
A concert is a time to get especially dressed up!
I know you can’t complain about lines or walking far or waiting for the music to start. 
You can read a book while you are waiting but not during the music because that is rude.
You should clap when an exciting part of a song happens and at the end of the song too. 
If the people behind you are sitting, it might not be right to stand up but if everyone is standing up then you won’t be able to see if you stay in a seat.
I do not know how many concerts I have been to now. It might be about ten. My first one was when Mama was pregnant but I don’t remember that, of course.