Anonymous wrote:Completely normal.
My DC would run around his crib making choo choo train noises. DC was train obsessed. A few times I found DC asleep sitting up, with their head flopped between their legs. I wish I had taken a picture. And DC would also chitchat to themselves.
I didn't know if that was normal or not since this was our first DC, and we didn't have a lot of exposure to young children. But, it was sure entertaining to hear and watch DC over the monitor.