Constantine gets his first actual, intentional expression, and even then it's kind of subtle. But he can probably pick out a baffled annoyance from the set of his eyebrows and mouth. He's a weapon. He doesn't go on dates.

Then the annoyance slides out for a second, leaving just confusion, as he wonders where he learned that particular slang. If he doesn't go on dates, how does he know what one is?

But it only lasts a few heartbeats before he tries doing as instructed. For one step. If Constantine is standing in the direction of "deck one", then he takes that one step, then hastily attempts to step backwards again only to find that also doesn't work. If Constantine is not standing in the direction of deck one, all he does is stand there and make a frustrated little noise. "Are you doing this?" he demands.