Originally Posted by kiddBesides what Ian wrote, I'd like to add:Originally Posted by Ian Liew
When Xie Yanke laughed, it was in response to the little beggar's strange "name". He was caught completely unaware and the laugh was a genuine laugh of total amusement. There was nothing frightening about the laugh at all, and the little beggar -- being simple and innocent -- picked up on the non-threatening emotional tone of the laugh. So he laughed along. This is an example of "social referencing", where children look to adults and their behaviour in order to respond to a particular situation.