She didn't think that Piotr was as stony as he counted himself, but then, her standards for such scrutiny were high. Perhaps she only truly noticed his moodiness because she was his sister. Perhaps it had to do with her deeper understanding of Russian stoicism than most of the people here could appreciate. Or perhaps it had more to do with herself, who and what she had been made into.

"Most people can be fooled most of the time without a great deal of effort." She tipped a shoulder at him regardless. She had noticed his mood, and it seemed plain enough to her. "However upset you may be at the moment would pale in comparison to having watched me explode in front of you, don't you think?"