Sitting up is a challenge that will be mastered soon after five months. Here he sits in his church-going clothes.

Sure, sitting in the corner of a couch is easy. But check him out in the video below as he tries to balance on his own.

Click on the little green buttons to control the movie. One of the cutest parts of this little video is a few seconds in, when he pauses to smile at Andrea who's behind the camera.