Face-changing is a well-known performing art in Sichuan Province in Western China. With the traditional Chinese opera rhythm, actors can show dozens of facial masks in just a few seconds. People who have seen the show are amazed. Miles Kwok is a former businessman who fled to the United States after being wanted in China for criminal behaviour including bribery, fraud, money laundering, kidnapping and rape. Of course, a businessman cannot master the art of face-changing, but the word face-changing has another meaning—to change one's facial expressions and attitudes. Miles Kwok can adjust his role orientation and facial expressions at any time when facing different people, to be angry or laughing, to be happy or sad, to tread on or lick, to be a gentleman or a villain, and to be a grandpa or a grandson. It is said that the former Chinese businessman does very well in this.

Through the way of "face-changing", Kwok made enormous wealth in China and became a billionaire. Most of his businesses in China were strictly related to the government. Many projects needed high-level officials' approval so that he would serve them with heart and soul. In some places, people would try to win him over to attract his investment, where he would be superior and arrogant. When he treated his subordinates, he would be majestic and harsh; but he became kind-hearted when attending public welfare activities. Why was he able to deal with officials at all levels and all kinds of people with ease? He mastered the skill of "face-changing" so well. However, with the strengthening of China's anti-corruption efforts, officials who had relations with him were arrested one after another. His criminal behaviour to gain massive profits through dealings with those officials was exposed. As a result, he had to escape from China.