Thank goodness he'd looked away, given the sounds of eating that thing. Papyrus grimaces and cringes at the changes to Tyki's voice, but lingers to listen. Not just out of wanting to bask in the compliments, though that's nice, nor politeness, though what you're supposed to do has informed every part of his villainous demeanor... But indignation for the other harbingers.

"Why isn't it going to work??" Papyrus finally demands, glancing up long enough to check his expression.

If Tyki's just manipulating him, baiting him into confusion, whatever. But if there's some real, legitimate concerns about the plan... CY-Ren hadn't know of the carnival. A note of worry has haunted Papyrus almost since waking up. Maybe there's more she didn't account for... And he should check.