What are some of the things that pals do together? What kind of understandings can pass between pals?
Think about the qualities of a pal, and think about your stuff, the inanimate objects in the orbit of your life.
Write about one of those objects by describing it in terms of your relationship as pals.
If you finish writing about one object and still have room on the page, start drawing. Or write about a different object.
When the page is full, give it a title and write the date on it.