a volunteer I have been volunteered for 10 years since i was a student and i benefited a lot.well,i still remember a boy i met in the UNEP Youth conference,he was the youngest delegate from Korea and he is only15 ,meanwhile, I was the oldest one aged 23. The age restriction of Youth conference was 16--24.He’s thought was more mature than i had at that time and he told me he was a number of the UN Child Conference :> I found that Japanese is the most diligent person in the world---none of Japanese delegate slept during 4 days conference.my roommate was from Japan and i never found her lounged in bad at night,all Japanese delegates had night meeting together to discuss daytime’s theme and they prepared the next day’s speeches as well.