"Well, it's nice to meet you, then," he replied.  "Neasa, huh?  Interesting name," he added.  Did she really come here to try to find her brother?  Not that it wasn't a noble cause, but it seemed like an awfully risky thing to do, even considering the circumstances.  She must have really cared for him.  Scott brought his hand up to his chin and rubbed his stubble.  "Are you still looking for him?  I may be of some help, if you're alright with that."

Scott gave her prior question some thought.  He figured he had already assessed the risks and accepted them when he made his decision to enter the zone, but on the point of taking risks Scott realized something.  This woman wasn't wearing a gas mask either, even before she saw him not wearing one.  He had an excuse; he knew this house was mostly clear of any ambient contaminants, but how would she have known if she just got here?  He cocked an eyebrow.  Hypocrite.  "Why aren't you wearing a mask?  You only just came in here, how would you know it's safe?" he asked, knowingly, rhetorically, and matter-of-factly, flashing a sly smile.