One step in the process of revising your first draft should be?

First yoy should read what ever your editing aloud and mark any mistakes or errors that you find along the way.

-check that everything flows nicely

-if you are writing about a topic, make sure that you stayed on topic and that you answered the question,

-you can change word choice, spelling, punctuation, sentence structure, etc.

There are a lot of things that you can change in a first draft so it's really up to you.