Love it! Laura hasn't signed back to me yet, but knows milk, drink (from sippy cup) and cat.
I know that she understands because when I ask her if she wants a drink (and sign) she looks around for her cup, and cracks up laughing when I pick it up and give it too her. Also when I ask "Where is the cat?" and sign, she looks around on the floor until she sees the cat. It's so cute
We had a lady from Baby talk come and speak at Plunket, and then I brought the book and have just used that.