Human-computer interaction is social and emotional even when interfaces are not designed with such interaction as a goal. Nowadays, through the advance in technology, this goal is much more easily achieved than ever before. While computer technology is continually  upgraded and products are capable of doing much more than merely finishing tasks, usability problems remain, and new problems have already arisen. We believe that sooner or later not only general electronic products but also other everyday devices and appliances will be capable of responding on a human social level. For instance, a charming computer may cheer its user; an user-friendly and considerate vending machine may be more attractive to people. These attributes are social and are capable of encouraging and pacifying people; meanwhile, it may also enrich human-product interactions and is much more interesting.
In this study, by understanding the key attitudes of human interaction, we apply these attributes to the interaction design of our product, filled in affection and attempt to diminish the distance between human and product. We took a vending machine as an example and a medium to communicate social intentions, and applied these attributes via embodying products with motion capability. Throughout a prototype interaction experiment with test subjects, this study also examines the interaction effect between user factors and medium factors on feelings of social presence. From a designer’s point of view, we also purpose comments on how to construct a social motion cue as a new leverage for design strategy. Finally, we conclude that social motion attributes can successfully lure people, especially psychologically.