What should I prepare if I want to be a volunteer of Expo 2010 in China ?

Hello! I am a chinese, a high school student,i am not too clear in this regard, but i think you should do that first learn to speak Mandarin,so communication skills and the chinese people.Secoud, mang of the chinese nation , customs vary, you should learn about their customs, in order to avoid conflict the third, it is necessary to self-confidence,self-confidence in foreign countries the most important.I hope that you will succeed.