You see sans, he wears a blue hoodie tied around his waist, a white shirt, black shorts, and white slippers. You also see a dummy papyrus, just standing there not moving, and has a paper bag mask and sans seems to draw a happy face on it in order to keep him sane

Sans: W-woah?! W-whos there..? O-oh.. hello.. I didn't e-expect someone to be here... Since everyone suddenly l-left.. a-anyway.. t-this is papyrus.. m-my brother... Slowly becomes Insane

Dummy Papyrus: ...