Grock typically shaves his hair, beard, and eyebrows because orcs in his universe who wish to be more civilized just do that. In our Earth, he thinks it makes him look more savage to terrorists. Edwin has talked him into growing it out - something he's not done in 240 years (he's actually young for his universe's orcs). Grock is unsure if he likes it and doesn't know how Roxy - a barmaid at the on post bar whom he'd like to get to know will like it or not.
Dialogue (in front of the bathroom mirror)
GROCK: Edwin, I look like a fcking barbarian - like Brughor.
EDWIN: It's fine, Dude. If she says she prefers the cue ball then shave it off. That's why we have razors.
[EDWIN Continuing] BTW, If orcs shave the curtains in your universe do they shave the carpet too?
GROCK: ABSOLUTELY NOT! Imagine a thousand ingrown hairs on your . . ."
EDWIN: [interrupting] WOAH Dude! TMI. I'm sorry I asked.