These 4 days I have been to a northern part of Guangdong province in Mainland China to experience village life and perform some charity work to local underprivilegded. It turns out not much is related to charity, for local kids can access to internet cafes and all have big houses and TVs at home. They enjoy free education for 9 years and all girls can receive the same benefits. The only difference of them from the city kids is they are not exposed to the world outside, so they are extremely amazed when they see us - they cover their mouths and cannot help hiding their grin shouting "Hong Kong people! Beautiful Hong Kong people!" Innocence is the key to happiness, because when you see new teachers, you are happy; when you see cameras, you are happy; when you see anything you have never seen before, you are happy.