Desmond maybe feels a bit like something gangly caught up in headlights, cheeks heating just a little.

"Dunno." He pauses for a second, lets his teeth catch at the inside of his cheek. He isn't quite certain how to say 'whatever ones make your welcome wear out slower' in a manner that doesn't sound like he's accustomed to being kicked out. Because that isn't exactly correct either. "I guess it's just -" Another slight twitch of his shoulders. "Don't take up too much space that's anybody else's. Don't pretend you know what you're supposed to be saying."