How do I grow up

Viviane listened earnestly, her expression open and beaming, as Aurielle took one of the few herbs she knew and ran with it, giving her a list of all the uses for it. Her ears pressed forward intently as she committed each use to memory. Everything from anxiety to coughs to stomach aches - she had to stifle a giggle at flatulence - and external uses. She thought guiltily of the scarring on Artur's face and wondered if she could have stopped it from scarring as badly if she'd known about it and helped her. She was glad to be learning now, so that she'd be able to help next time. "When shouldn't you use lavender? Are there times where it would be a bad thing to use? How strong is it? Is it -" Her ears reddened in embarrassment and she stopped the torrent of questions. "Sorry, I won't interrupt."