Steph looks up at the first noise. She's focused on her research, treating this entire experience as a mission more than anything - it makes sense to her, with so many civilians aboard, what few people she knows and sort-of-knows. If necessary, she'll defend each and every one of them, but only if she knows what she's defending them again, and why.

But Steph is hardly ever focused enough to let someone sneak up on her. She looks up at the noise, meets Amanda's gaze, and gives her a friendly nod and smile. She's open to conversation, if the other woman is.