Walking along Western Road last Night

Walking back from the Evening Star last night, down Western Road. Was about midnight, maybe a bit later.
Couple of guys. Looked young. Looked like they had rich parents. One of them walks out in front of me, about to say something. I cut him off, shaking my head; 'nah' and walk on.
I don't see them again, but my reaction seems to puzzle them. I hear one of them repeat 'nah', and then say 'hair cut?' and the other say 'big issue?'.
Trying to sound hard but they end up sounding sad and puzzled.