Emilee is Talking!!

My niece really is starting to talk. I went to visit this weekend, and I heard "hi," "bye," "boo" (blue - apparently every color is blue right now), etc. So cool! I wish I had taken my camera so I could have taken some pictures. How do we learn to speak, anyway? I know I can look it up and understand more, but really, how do we do it? Since she was a very wee baby, Emilee has stuck her fingers in my mouth, for some reason. She hasn't done that for a long time, but when I was there on Saturday, she came up to me and shoved them in. After a bit, she started to make the "T" sound. "That's right - teeth." But how did her brain figure out how to make that sound? It's just kind of amazing if you think about it.