Papyrus glances away at the notion of inviting them. The passive method does have its reasons, of course... But the situation seems convoluted and lengthy to explain. Especially in what is, as Will has just reminded him, supposed to be a welcome. There's still a good number of other new arrivals milling about the room, talking and asking questions.

"Yeah, you're welcome! That's a long story, and one I'd be happy to tell you about..." For a given value of happy. Bittersweet nostalgia and homesickness, mostly, if he dwells on it.

"...But you have enough to get used to. A new city, a new world... Probably some kind of new powers. Did they explain about witches and monsters?"