Ji Feng, also vice principal of Zhiyuan Foreign Language Elementary School, is so popular among students that a lot of them were asking him for pictures. "I came up with the idea of giving them my signed pictures as a reward," he told the Nanjing Morning Post.

Students who put in exemplary work can now pose for a picture with Ji who then signs the printed photograph.  Ji added: "It absolutely is not narcissism, but a way of encouragement. And only the students who perform the best can get such a reward." Ji said three students had so far submitted work good enough for signed pictures - but he hoped to give out many more.

When I tried a similar idea it was called harassment...

When it was tried in the UK it never really caught on.

The original was here