They'll try and help him out with that when they get to the common room. He walked along side Duo, letting him pass him up the stairs before following behind. How to do that? Hm.

"As if. You get into a conversation with someone, you tell em. Either that or we could find some chalk and write it on the wall. Don't think anyone can ignore that." He snorted at the thought and shook his head. Once they were up the stairs he shrugged. "Do whatever, just make sure that people know what's going on."