What are some of the ways to greet people in korean?

Below are some ways Koreans greet people,

Koreans say “안녕하세요 [an nyeong ha seyo]?” while slightly bowing their head when they greet others.

You can simply say “안녕?” when you are greeting your friends or a person younger than you.

“안녕하세요?” can be used regardless of the time of the day; it can be used in the morning, afternoon, or evening.

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안녕하세요~ => this is to people who you first met or they are older than you

안녕! => to friends or younger people

harry potter? (too many lols cuz it can't be short)