He figured out his kicky bouncy thing, where the lights flash and things make noise when he kicks. He might have figured it out before this, but I have been a bad, no-battery-having mother.

So I set it up, and he just stared at it awhile, then looked at the ceiling. Then, quite by accident, he kicked and the thing sang at him. Startled, he watched it for awhile, then looked away again when it didn't make any more noise. Again, by accident, he kicked and the thing reacted and he gasped.

When he finally figured out that he was the one making it do things, he shrieked. It was a very big eureka! moment. Soon after that, he had all new words to go along with his feelings, which he expresses these days very loudly. One of them is definitely "Ah-Goo."

***

Also, here he is with a frog on his belly.