Answer:
1. Wash your hands.
2. sneeze or cough in your elbow / arm.
3. Stay at least two feet from someone.
Explanation:
As a verb, like 'Quiet down,' you can use the verb 'tranquilliser.'
For adjectives, you can use 'calme, tranquille, silencieux,' and a couple others
For if you need quiet to be a noun, use 'la tranquillité' or 'le silence.'
"trousse" means "pencil case" in a school setting.
