How social change influences human behavioral change ? Why human behavior may be influenced by social change? Our individual behavior whether can be influenced to bring negative or positive attitude by social change? I shall attempt to indicate cases to explain whether our individual behavior can be influenced to changed by social environment change. Readers can have more understand how and why social change may influence our behavior in possible. Behavioral economy is one useful and fun social subject. Behavioral economists ususally research how and why human behaviors may influence economy growth or recession, or how and why economy environment changing factor may influence human behavior changes. This book is a business psychological teaching book. This book aims to indicate some sample different kinds of client individual psychological emotion challenges to give opions to let these businesses how to solve these psychological challenges and how to attract clients' concerning to their products or services. Also, I shall explain how to use psychological methods to predict clients' emotion in order to attract more clients to choose to use these businesses' services or buy these businesses' products.