I got this email from BabyCenter today: Your baby is becoming very handy. Although she's already aware of her hands, she's now inspecting them like Sherlock Holmes. She turns them around, the better to look at her fingers from all sides. She opens and shuts her fists, watching each finger as it moves up and down. To help your baby develop her blossoming hand-eye coordination, try dangling a toy just out of reach so she has to grab for it.
Can I just say, Brianna found her thumb over a month ago? She may have had a little encouragement by watching her big sister, who loves her thumb. She still doesn't find it every time she looks for it, but it's usually right where she left it, waiting for her.