Oh my goodness - Josie has learned to wave! This morning I was working on the computer & Carissa brought Josie out after her nap. I said "Hi Josie" and waved to her, and this is what happened next! (Excuse the poor video quality, but I had to act quickly before the moment passed.)
And - much to my surprise - this wasn't a total fluke because we've exchanged several waves back & forth since this happened this morning. Wow!