Students welcome World Hello Day on Nov 21 by holding smiling cartoon faces and paper-cuts reading "Hello" to passers-by at Liaocheng University in East China's Shandong province on Nov 20, 2012.[Photo by Zhang Zhenxiang/Asianewsphoto]
A boy pastes a greeting card on a prayer wall to welcome the World Hello Day on Nov 21 at a primary school in Jiande city, East China's Zhejiang province on Nov 20, 2012. [Photo by Ning Wenwu/Asianewsphoto]