Her eyes stay focused in on his uniform. There's something familiar about it and she can't put her finger on it right away. So she stalls for time, arching her eyebrows and giving him a confused look. "Then...you're trapped here? In space."

She realizes that probably sounds terrible, so she looks semi-apologetic as she adds on, "Sorry to be the bearer of bad news, but it's best you hear this now."

And then, it clicks. She knows exactly where his uniform is from. And it makes no sense for him to be wearing it, not with that accent. There's a story there, but it's not one she'll push for right away.