One of my favorite things to see Dottie do (besides move her individual fingers and toes) is to see her wrinkle her forehead. Before Dottie I didn't really "get" infants, because they just sit there. Once kids get to 1-2 years old they really develop a personality and you can see them as a real person, not just a generic baby that responds the way all babies do. I think what I like the most about seeing Dottie wrinkle her forehead is that it gives me a glimpse of the expressions that I'll hopefully see from her a year from now.
... and this one I just threw in to prove that her forehead isn't always wrinkled like that. She's fast asleep and comforted. Look at that blond hair!
If you notice, one of the ways they monitor Dottie is with a heart-shaped gold sensor, placed on her lower back. Originally Dottie had the entire heart shape, but I think they cut it in half because she was too small for the regular preemie sensor. Dottie gets half of the heart, and we get the other half. Here's the other half in my hand for a size comparison: