"I'd be surprised if she hadn't," Greta replies after giving it a moment's thought. There haven't been any focused lessons, but when Anne and Regan are both present, Greta tends to talk while she signs. It just seemed more polite that way, like they weren't going over Anne's head on purpose. And Anne's observant; it would shock her more if she hadn't picked up on anything, even by accident.

"Though I'm sure you're the better teacher," she adds, leaning over to give Regan a light, fond bump with her shoulder.