Emme's abrupt appearance elicited a startled "Ah!", and the shoulder-bump sent her momentary wobbling (she'd had her feet pressed close together, trying to huddle in on herself to conserve heat)--but, quickly enough she found her balance once more, and found herself flashing a grin back at the new arrival, albeit one that was awkward (on account of Emme's rather... assertive arrival) in addition to being rather forced (on account of the circumstances in general).

"Um--hi." While Emme's almost belligerent friendliness bordered on off-putting... after a few moments for Ana to regain her composure, it was a welcome enough diversion from.... other things, that she found herself not minding terribly much. "Ah, yeah, that..." another shiver, "That sounds pretty great about now. Ugh, it would've been nice if they could've canceled classes before we got all the way out here, yanno?"

It was an absurd sentiment, of course, with the rather obvious reason for the abrupt change of schedule hardly a stone's throw away from them--but that was sort of the point. Just proactively ignore it until it goes away.