My uncle's deaf. I either write on a piece of paper or I open up "notepad" if .i'm near a computer, since I type super fast.
The only signs I know are: the alphabet, "sign language", thank you, and sit.
My cousin .andrew (my uncle's son) is fluent in .english and .a.s.l (well, as fluent as he can be at 8 years old), and he knows some .czech (they lived in .prague for years) and some .japanese (he's half japanese). I think his school in .texas is starting to teach him .spanish, too.
He's a smart kid. I feel really dumb with my little pad of paper sitting next to him.