- - how are you
  - Good, how about you?
- - how are you
  - Okay, how about you?
- - How are you doing?
  - Very well, thanks. How about you?
- - How is it going
  - Fine, and you?
- - How do you do?
  - I'm doing well.
- - How are you feeling
  - I'm doing well. How are you?