This pic exemplifies one of Rosalie' signs of development that I find precious. She likes to feed other people, such as her friend Fiona. I love to watch her face while she does it. Here you can see her working on her aim while also trying to coax Fiona to open her mouth by demonstrating.
Then there's the hospitality. When other babies come over to our house, she will often bring them one of her toys, especially if they are seeming shy or unsure.
The Evolution of Rosalie advances forth. A couple days ago I handed her something, and I swear she said the words "Thank you." Clearly she's noticed that we thank her for everything she hands us, including the just-folded-then-mysteriously-unfolded towel, a chewed-up cracker she changed her mind about, and trash. Man, these people are grateful about everything. Might as well go along with it.
We are proud of our civilized person. Even when she's being a cave baby.