We're also teaching Charlie. He's deaf. It's really hard. We have an interpreter from our ward but apparently in sign language, they don't use abstract ideas. They are as blunt as it gets. So that is going to be hard explaining the gospel to him but it'll be a cool experience.
In our last lesson, Sister byu and I were trying to explain all these things and ask him a bunch of questions but he didn't understand absolutely any of it because it was too abstract. I'm learning the ABC's so that I can somewhat communicate with him without our interpreter. It's pretty nuts. I'll let you know how it goes.