Fuzz goes around saying "happy!" sometimes. I don't think he necessarily knows what it means, but it is awfully cute to watch him toddle around saying that he is happy.
After a slog through some really boring, slow books, I was glad that The Charwoman's Daughter was quick, interesting, and yes, happy. The mother and daughter in the book really love each other and I enjoyed watching their relationship develop. The mother of 6 next door also loves her children fiercely and does everything in her power to give them the best life - even if it means taking in a lodger, leading to much more work on her part. The book even had a happy ending! I liked this one.