You will not

-Stare at the engines if there's an air stair (look straight ahead and look bored and annoyed that there's someone in front of you)
-Look at or touch the skin of the aircraft as you pass through the door
-Glance longingly at the cockpit as you walk past (you terrorist, only terrorists are interested in that stuff up there)
-Read the safety card for any reason (omg imagine the germs)

Most importantly: under no circumstances are you to look out the window, what are you a child?