Abstract --- This paper introduces a community for young researchers in robotics, HUROBINT (HUman and ROBot INTeraction) and its social activities. Additionally it addresses importance and merit of science communication with citizens and researchers in other fields. The HUROBINT community helps young researchers make collaborators who join their research projects and other activities. And it provides us with good opportunities to make friends in the same fields. Social activities and science communication are essentially parts of research activities, and they contribute to not only widely spread our achievement but also provide us with interdisciplinary viewpoints. Making social network and implementation of out-reaching will give us fruitful effects on robotics researches that are going to be highly complicated day by day.