You do first, then I know how to do. It means if you hit me first, I will know how to do.

Dear everybody,

          I have an example of the conversation about the question "How do you do?" in the following conversation:

A : How do you do?

B : It is not easy to answer this question.

A : Why?

B : You do first, then I know how to do. It means if you hit me first, I will know how to do.

A : 55555555555555555, so then how are you doing?

B : I 'm fine, thank you, and you?

A : I 'm fine too. Thank you.

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We need to know when one uses "How do you do?".

Kind regards,

Meng