He looks like he's had a bad morning, and Cho's got a decent guess as to the cause. She looks around them automatically, trying to see if she can spot the hazy outlines of the clouds of absolute flipping terror and cruelty. None are immediately evident. He might have successfully outrun it. "I'm not lost. I just finished making breakfast. I was on my way back to my room. Are you lost?"

Looking like he's seen a ghost, and it's entirely possible he kind of has, which would screw with anyone's head. "Would you like some water?" Cho pulls her reusable water bottle out of her bag and holds it out to him. Even if he's not thirsty, it might make him feel a little better to have something to do with this hands, and an excuse to not talk for a moment. She knows that feeling, too.