Sometimes, even when you know a lot of English, you can still

have difficulty finding the right words or phrases to answer simple questions.
For example:
✅What do you do?

This question means “What is your job or your profession?”
>I am a student
>I work at a bank
>I work at Perfect World
>I’m unemployed at the moment; or you can say: I’m between jobs!
>I own my own business
>I’m retired now. I used to be an engineer.

What do you do?