He's defensive, isn't he?

She adds, no pause: "What kind of hero work?"

Sara doesn't react either way, except to tip her head slightly to one side, continuing to appraise the kid who seriously looked shocked that she'd asked him to actually place himself in his own categories. The features aren't getting all that easier fast to being able to just look at entirely. "And why do you do it, then?"

There's something of barely shifting, but telling assessment in the way her eyes narrow slightly.
The answer matters, even if all of the people on her own boat would answer different ways and reasons.