They had also both rolled over by this point. Parker from his front to back and Paige from her back to front. So far Harleigh hasn't done either, she does try to roll over from her back to front but loves laying on her side too much so gives up. I don't like to compare them too much but its so fascinating just how different they are.
She loves grabbing toys and hitting them when she is on her playmat. She also love playing peek-a-boo and giggles, it is the cutest thing. At this age Parker hadn't giggled.
I think that is everything for 4 months. She is doing so well and it still amazes me how she has fit in so well.