Answer:
Decorum is proper and polite behavior.
An example in my school is academic decorum. Like paying attention in class, being respectful to the teacher, and turning everything in as soon as possible with 95% to 100% level work to maintain A grades.
I chose this specific decorum because it described expected class behavior for every student, which is to be ready, respectful, resilient, and ready. Students jobs are to learn from the ones teaching them, which are the teachers so that in life, they can use these skills to give better advantages to themselves or others.