Sign Language

I've been trying to get Johnny to sign for a good nine months of his life and he's FINALLY getting it. Okay, not really, only one sign so far. And pointing. But I don't think that counts. Anyway, I've been working with him on trying to sign "more," "milk," and "all done" for a very long time. He has picked up the "more" sign, although I'm not convinced he really knows what "more" means... whatever. I should just take it and run with it, right?