It unnerved Hermione how Rodolphus watched her from across the room whenever she had the misfortune to be in the same one he was. She'd never been able to read the wizard for as long as she'd known him. When she was more inclined to enjoy being in his company and to actually seek him out, she often found herself annoyed that he wasn't easier to understand. Part of her job as an interrogator required a certain set of skills that she couldn't just leave at the office at the end of the day. Everywhere she went, no matter if it was professional or personal, she tried to read the people around her to better understand them, to figure out when they were lying. More than a few times Antonin had to steer her from guests at social occasions because she was making them uncomfortable with her inquiries. She was just being friendly exactly as he implored her to be before they entered whatever awful soirée their presence was requested! But with Rodolphus, she knew that he could keep the content of his thoughts to himself indefinitely.