In life, we communicate wtih a large number of people. Recently, we have gained the ability to communication with others through chatting applications of SNS(Social Networking Service). The appearance of technology such as smart phones has made communication at a distance easier easier than ever. Because of this we can broaden the range of our acquaintances to reach around the world. However, there is a dark side that comes along with this increased connectivity. One example of this is that communication with others is not cone face to face. We have all experienced communication in the tech era through devices like smart phones. Have you ever gone to a cafe to talk with your friend, but you don't talk with each other and you end up talking with other people using your smart phones? It is moments like these that should cause us to take a moment and think about what it really means to communicate with someone.