Something about the way the supraorbital ridge of one eye socket moves ends up giving the impression of a raised eyebrow.

"Huh," Sans says, waiting a moment before he elaborates, eyeing Liadan off with renewed interest. He had thought humans had forgotten all about monsterkind after locking them up and throwing away the key, but getting into an ancient history lesson with people he just met? Sounds like a real chore.

"Yep, a monster through and through. But, uh," he adds, grinning, "Judging from that look on your face, that doesn't exactly have a pleasant association with your kind, huh?

"Yeah, same with the humans back home," Sans assumes, and then turns to Eichi, rumbling matter-of-factly, as his phalanges rasp over the crown of his skull. "Water sausage and magic, what else, pal? It ain't gonna poison ya. Here--"

Think fast, Eichi, Sans may just end up plucking that 'dog out of your hand if he's allowed.