The observation training in Hong Kong was conducted successfully. Doris Cheng and James Ko were the leading actors during the instrument validation. Often the simplest definitions were the hardest. What are eating situations? How to consider emotions in role play? Scaffolded play definition produced a lot of talks.We agreed on a broad definition somewhere between direct education and free play.We could not find one universal definition.  The other observed items will be helping us in defining the more refined aspects of guided or scaffolded play. Hong Kong is a surprisingly versatile and complex place. A good challenge for our refined tools!