Yesterday, CC made her first sign! She was crawling around on our laps on the couch, saw her sippy cup, looked at me, and then made the sign for "milk"! I was so excited and surprised -- it's not one of the signs I am most consistent about using with her, so I didn't expect it would be her first one! But we praised her and clapped and made a big deal about it (and gave her some milk, which is really all she wanted!).
Some other signs I've been using: "food," "please," and "all done." I know, it's not a lot. I need to learn more signs myself, so I can teach them to CC!