Design and semantics of form and movement 82 Abstract With the popularity of electronic devices and the maturity of minimization in communication technology, more and more objects are created to improve miscellaneous interaction. However, they are often designed to engage users during limited time. Moreover, when overloaded information is shown on a computer screen, it not only occupies the visual sense and ignores the function of the other senses but also almost interrupts our work at hand in everyday life. In this thesis, we probe many rules of interaction design and draw the key elements from the interesting experience in our daily life. By this way, we redesign the prototype which is able to improve social interaction tenderly and spin out the group movements in ambient form. Furthermore, we consider sense of hearing and transform it to be more active and memorable social movements, opening a new way and direction to the interaction interface of communication. Finally, design principles of this type of ambient interaction are discussed and two prototypes, Social Radio and Social Clock, are presented with implementation detail. Keywords Social Interaction, Group Dynamics, Slow Technology, Second Sensory, Everyday Lives, Interaction Design, Ubiquitous Computing. 1. Introduction The trend in technology development today is upgrading the requirement of software and hardware, to enable more information loading and ubiquitous computing. Consequently, there are more and more information and applications which can’t be easily digested by humans within the limited time in our daily lives. In these applications, the social network application is surely a pervading genre with rapidly growing popularity. With powerful network technology, social software seems to promise a better future to connect people whenever and wherever they need. However, if we rethink computer mediation as well as social interaction, rather than taking current social software for granted, there is still much space to explore. In this research, we irst ask “what is the possible form and material of computer mediated social interaction?” By examining ways of communication and forms of everyday objects, we can gradually igure out that our target is to design everyday objects for social interaction with ambient form and networked media (Fig.1). In the physical setting of our everyday life, social interaction happens not only with explicit form and real-time response, but also with implicit form such as written script, post-it stickers, footprints, and so on. In another words, people construct an understanding about others by using all types of senses in the physical environment. Moreover, to feel the atmosphere and Rung-Huei Liang, Kuo-Chun Tseng, Meng-Yang Lee, Chih-Yun Cheng liang@mail.ntust.edu.tw Social radio: designing everyday objects for social interaction with ambient form