Arden went in for her 4 month check up today and she weighs 12 lbs. 15 oz.- weighing in just under 13 lbs! That means she's gained almost 2 lbs in 2 months which the doctor was happy with. She got more shots this time, but Mom didn't cry like last time. I let Dave hold her while she got the shots which I think made a difference and then I just nursed her afterward to calm her down and she was fine within minutes. 
Her biggest accomplishment lately is finding her foot. She loves to play with it, especially on the changing table. I think this is adorable especially considering it's a yoga pose appropriately named "happy baby".
She has become very social, "talking" to herself or anyone that will listen. I recorded a brief "talking" session that you can see below.
I've also uploaded some short videos to You Tube, including the above video,so here's the link to those.