One of the things that cracks me up about our little guy is his total pleasure in all of his accomplishments. He recently learned to really roll over and now spends much of his day rolling. When he first started doing things like rolling, we would say "Jia You!" to encourage him along. "Jia You" literally means "Add oil" and you made have heard it at the Summer Olympics in Beijing.
Here he is- he just rolled from stomach to back and is looking at me for his "Jia You!"
"Jia You!" received with total delight!