[ Taking the beer, he half-sits up a little more to take a sip, then stretches his arm up towards the window to set the beer down on the window sill. And naturally, she was bound to ask that kind of question sooner or later. He swallows his mouthful of beer. ]

Uh. [ Licking his lips, making it seem like he's just licking away the taste of beer and not stalling for a moment to wrack his brain for some kind of lie. ] Guess someone musta lived here before? The guys who found this place said it was abandoned, so I'm guessin'... some weirdo from some other planet that the Ingress musta pulled back home or something?

[ A deliberately clueless one-shouldered shrug while reaching down for a slice of pizza. ]