" To sum up, when writing in the first person, it helps to keep these things in mind:    • Every word the narrator says must in some way reflect his point of view.    • The narrator never mentions anything that doesn’t affect him in some way.    • The narrator draws a conclusion about everything he mentions.    • The narrator is never neutral; he always has an agenda.    • The narrator can never tell us what anyone else is thinking or feeling. Conveying "

― Lisa Cron , Wired for Story: The Writer's Guide to Using Brain Science to Hook Readers from the Very First Sentence