In the variety show "Sound Come", Andrew imitated several segments of Leslie Cheung TV series. His fluent Cantonese made people present guess that he was from Guangdong. As a result, Andrew denied this statement and surprised the audience. Yin lives in Guangdong, and it is normal to speak Cantonese well, but Andrew has always kept a low profile, so many people don't know.
Andrew likes Leslie Cheung very much. I believe fans who like him must know that his fluent Cantonese has something to do with Leslie Cheung. In his Weibo, you can often see about Leslie Cheung. He often imitates Leslie Cheung on the stage. It is because he speaks Cantonese well that his imitation is particularly vivid.