Recently, I agreed to teach a friend how to draw because they said they got inspired to draw whenever they see my art, but in reality, I vaguely have any idea about teaching someone how to draw. And there's the issue of art styles.
Send help.

Teaching is like giving an idea about something. Just tell her how you draw and what makes you draw. Then you can tell her about art styles.

So, basically, I can just let them do things in their own way so they can develop their own art style and maybe give them advises ocassionally?

"Drawing" is pretty vague imho. Is your friend looking to develop a certain skill in particular? Are different mediums involved? Either way, making a set goal will be easier. Like if your friend wants to draw a portrait or something, it'll be easier to divide that into chunks.

Well, yeah, I'm finding it difficult since it is pretty vague. I may have to talk with them about it first. Thanks.