A class representative, in the context of an elementary school or junior high school.

committee chairman

chief, head, leader

class (in school)

committee member / a committee

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(chiefly women's speech) first person singular pronoun: I, me

(polite) first-person singular pronoun: I, me