"Hey, I'm not touching." Looking's not rude! Looking can be admiring. She's bold enough to stare right back at him, and that overwhelming feeling of familiarity comes back. That kind of scarring is pretty distinctive. Maybe subtract a few years...?

"I guess that's good," she starts slowly, and maybe peering at him is rude, but Pidge is no paragon of manners. Much to her mother's chagrin. "Means you don't keep asking questions once these questions are done. Easy business deal."