#1 Hello there!
A common and friendly way to acknowledge someone's presence.
#2 Good morning!
A polite greeting used specifically in the early hours of the day.
#3 How do you do?
A traditional and formal greeting, often not requiring a detailed answer.
#4 Nice to meet you!
Expressed when encountering someone for the first time.
#5 Hey, what's up?
An informal and casual greeting, asking about the current state or news.
