A: How are you?/ How are you doing?/How's it going? 어떻게 지내?
B: Could't be better./ I'm good./ Everthing's good./ Pretty good./ I'm alright./
I'm hanging in there.
A: What's up?/ What's going on?/ What's going on?/ What's happening?/ What's going down? 별다른 일 있어?
B: Nothing./ Nothing much./ Same old.