Athletic, Clay mentions that Justin is on the basketball team. /////////// Teenager, Hannah tells us they are in high school. /////////// Persistant, Hannah tells us that Justin would wait for Hannah at the end of her classes just to talk to her and get to know her a little better.
Justin is a self centered, egotistical, crude teenager. Justin is your typical egocentric jerk.
I saw Justin two ways one by the book version and one the show.
Justin is on Hannah's list because he spread a rumor that Hannah had tried to go to third base in a short period of time.