Casual vs. Formal greetings
You see a close friend in the hallway in the morning before school. How should you greet them?
Casual greeting. "Hey there", "Hi", "What's up?"
You see your principal in the hallway. How would you greet them?
Formal greeting. "Hello, Mr. or Mrs........, Good morning.......
You are greeting a group of friends that you sit with everyday at lunch. What do you say?
Casual greeting. "Hi.", "Hey"........