Papyrus nods gravely, almost more than the situation warrants, if only to match the seriousness of Angus's ashamed apology.

"It's okay. I forget sometimes too," he offers.

As for the question... No burst of recollection about his past or nature comes to mind, continuing to fail to RSVP despite the many invitations he's been sending. One one of these days, surely it'll come.

For now, he tests holding his jaw shut and says, "I can... Hey, I can understand me. So I guess I must!"

Just like the other skeleton, even when his jaw is shut in a frozen smile, his voice is as clear as ever.