Enjolras does not remotely view this conversation, nor any conversation at all, as exercising his charisma. (That is, of course, a large part of why his charisma is compelling.)

He waits. The question seems to have caught the monster's interest.

(A strange creature, up close. He'd never thought much about the minotaur, beyond its purpose in the tale and, later, the metaphors possible. But here it is, an altogether peculiar mix of man and bull, all muscle and threat and rank odors. Threat -- and yet, against all expectation, perhaps not pure malice. Perhaps.)

He would like a genuine answer, if he's going to get any answer at all, and he's prepared to wait for it. He's also prepared to react otherwise, if needs must.