It is a fact that more and more Chinese can hardly live without their mobile phones nowadays. Many of them, including senior citizens, use mobile apps to keep in touch with others and expand their circles of friends. They also use mobile phones to shop online and search for information because they are portable. What's more, communication through mobile apps costs less than traditional phone calls. However, this new trend results in the over-reliance on mobile phones when people are socializing. As a matter of fact, some young people have become so addicted to mobile phones that they have neglected the face-to-face communication with their family and friends.