The young college students gesture the Victory sign at Qingqingtang Square in Shanghai Jiao Tong University in Shanghai, east China, Sept. 15, 2009. About 1,000 undergraduates in Shanghai on Tuesday form up to display the volunteer logo of Shanghai Expo, literally means heart, to celebrate the launching of an activity with the theme of collecting a million smiling faces among youngsters in Shanghai to greet the 2010 Shanghai World Expo.[Xinhua]