"You too." He offered, letting her observe him but doing a little bit fo the same. He didn't really think her any kind of threat but it was an old habit that was hard to break. "Yeah, there's some dittany." he gestured toward a plant off to one side, "An essence would be better but just crushing the leaves does well enough." He'd probably be left with some scars but he didn't pay much mind to it, they'd hardly be his first.
"Do you mind?" he asked, going toward the book. He waited for her answer before he opened it, looking over what was there and what she'd written in as well. He knew there were a few code breakers at the Ministry who probably would have a spell to translate it, but he didn't know them well enough to try on a book that wasn't his. What she'd written should be enough information anyway. "What do you use these plants for?" he asked idly while flipping the pages.