Expressions of Taking Leave and the responses

We say “goodbye and see you.” when we take leave. Meanwhile, we say “good night.” when we take leave at night, such as we want to sleep at night.

Here are expressions of taking leave and the responses.

Taking Leave Responding
Goodbye./Bye./Bye-bye. Bye./Bye-bye.
See you (later/tomorrow). See you.
Good night. Good night.
So long See you.
Take care You too.
Take care of yourself. Thanks. Bye.
Sorry, I have to go now. Ok. Let’s keep in touch.
Sorry, I need to go now. Ok. Take care.
Sorry, I think I should go now. It’s nice to see you.
Sorry, I think I must go now. It’s nice to talk to you.
  Ina : Why are you sleepy in class?