Dorian took in his fill of the neon lights and nightlife, eyes agog, apparently dazzled enough to pay more than he owed for rounds of ostensibly non-alcoholic drinks in several establishments, drifting along from one to the next.

You'd have to be a sharper eye than his companions to notice that he was scanning the crowd with a keen eye, and tended to wind up near interesting conversations apparently not by his own volition.