Jamie's vocabulary has recently exploded. To be completely honest, I don't know if anyone but me and usually Thomas would be able to understand most of his words (most of them are just the first syllable or an approximation thereof), but he is now saying or trying to say the following:
ho ho ho
. . .and maybe some more that I don't remember right now! I am more thankful than ever we've done signing with him because, for example, when he says "baba," he might be saying "bye-bye," "baby," "ball," "rabbit," or making a sheep noise, which could be confusing, but he usually does the sign at the same time. Some other words are much more clear, though. It has been so amazing watching (hearing?) him learn to talk in the past few months! At 15 months he was only saying 5 or 6 words!