Last night Bean signed "banana". It was the first definitive sign where I could be sure that she understood that the sign meant banana and wasn't just mimicking our hand motions. She signed unprompted to ask for some banana.
It was freaking incredible, I tell you. She's so awesome.
(Oh, I should note that her sign is a very crude approximation of the sign we've been doing with her, but nonetheless, it was clear that she was trying to sign to us, and that's the important part.)
Introducing our son!
3 days ago