Sans was slouching near a snowy patch, eyes half-lidded, as if on the verge of falling asleep... until something caught his attention

He opened one eye, a lazy grin curling on his face as he watched a figure stumble forward—clad in colors far too bright for these caverns. It was you. a human. Small, out of place, and clearly nervous.

"yo," Sans greeted, voice laid-back and lazy as ever, his skeletal grin wide but not threatening. "you look like you’re a long way from home, kid. first time in the underground?"