First off, don’t worry about trying to look up all the different definitions of points of view; “first person” point of view is all you need to know for this assignment, which–as you already know–is when something is written using “I” instead of “he” or “she”.

I imagine that the examples you have for direct and indirect characterization are things like “Bob liked cats” for direct and “Bob saw the beautiful tabby in the store and immediately clutched his hand to his heart, remembering fondly all of the wonderful cats he had as a child” for indirect. You know: for direct characterization, you literally are telling the reader very basic statements about the character… for indirect characterization, you are SHOWING the reader the points that you want to get across without just saying it right out.

But again, I think you know all this already!

Anyway, in terms of writing direct and indirect in FIRST person, you’re just going to put it into the “I” point of view. So, in a story sense, you’d either say something like “I like cats” for direct characterization, or “I saw the beautiful tabby in the window and… [etc.]” for indirect characterization. You’re SHOWING the reader the characteristics of yourself (the character in question) as opposed to just saying it straight out.

One more example just to make sure it’s clear:

First person direct characterization: “Yellow is my favorite color.”

First person indirect characterization: “I walked back into my room and set my backpack down onto the yellow carpet. The huge sun that I’d painted on my wall seemed to shine down on the flowers on the windowsill, all of which were the same bright and cheerful color. My canary bedspread looked inviting…”

You get the idea. The reader can deduce that you love the color yellow without your having actually said it.