Oh! Was that a small human? Something vaguely humanish? With so many people and so many worlds, perhaps it was best not to make assumptions. But they looked... somber? The sigh certainly didn't strike him as a happy sound. And while it was hardly his business, Papyrus soon found himself approaching this stranger with a tentative smile.

"OH! HELLO THERE. IS EVERYTHING ALL RIGHT?"

There. Simple small talk to break the metaphorical ice.