Ethan is a fountain of sound. He giggles, coos, squeals, and grunts. He makes raspberries and is forming words. Some of his sounds defy description, and most are beyond me to imitate. One that I can, however, is his monkey sounds. Before bedtime he made a monkey noise, and I monkeyed back at him. He laughed and replied in kind, and we carried on the conversation for a couple minutes.