Playing the "Boo" Game with Ryan

Last night Ryan was in his swing, and we had just finished eating a bowl of rice cereal and peas. He was obviously in a pretty good mood because every time I would say something--anything--he would burst out in this little semi-laugh of his. So then I started playing the "Boo" game with him, and he was laughing every time I boo-ed him. I was lucky that he continued it long enough for me to capture a little of it on video, so here it is...