She was fully aware that he was impressed, and she loved it. Having a big ego was honestly almost a requirement for being a wizard. It helped hide the huge amount of work that went into researching, learning, and memorizing spells. "It's my own invention! Well, mine and a very helpful medical grad student who did a lot of work on the connection plate. It mostly works because of the way silver interact with-"

And then she went on into a long rambling speech about the inner workings of her invention, full of technical and magical jargon, that would go on for as long as Ippo didn't interrupt her.