When Emily was about Mark's age (she was 8 months and Mark is now 7&1/2), I taught her a "yay!" trick. When I said "yay", she would raise her hands over her head. Yesterday I started teaching Mark the trick and he took to it very quickly. But, he likes to raise his arms and then hear me say "yay". He thinks it is hilarious. Here is a video link of Mark's new trick. And here is a link to the post of Emily doing the same trick. This old post was before I had an iphone that took video, so there is no video, just pictures. http://www.lesem.net/?m=200912 Here is a picture of Mark doing his new trick. Also, Mark started army crawling yesterday afternoon. It was sudden and out of the blue. He really wasn't moving at all yesterday morning (he could roll and pull himself side to side but that was it) and now he can army crawl a pretty good distance. I am so excited about it because I think life is a lot more fun for a baby when they have some control over where they can go. I will post a video of him crawling soon.