Due to the connection between seats and outside space, not only can café stores with open terrace produce a sense openness of vision for users, but also the passing by pedestrians on the streets arise interest on this store since they can see the situations of using the open terrace. Therefore, the existence of consuming users themselves become one of the factors creating the impression of the shores. This study assumes that guests using open terrace of café stores will have effect on the "attentive behavior" of the pedestrians passing to this shops. The purpose of this study aims to realize how to apply different conditions of the guests using the open terrace of café stores, such as the number, gender of the guests and so on, affect the variation of the "attentive behaviors" of pedestrians, which will offer valuable reference for the owner of the stores in shop-façade design to improve the function of collecting guests and attracting the attentions of the pedestrians. The methodology of this study is to choose café store A in the shopping area of SHIH CHIEN University as experimental location for undertaking observing investigation, questionnaire and in-depth interview, which are under the using conditions of this store by prearranging, through which one can clearly understand how much the variable factors of using conditions of the open terrace actually influence the "attentive behavior" of pedestrians passing by this store. The results of the study reveals that the attentive rate of the pedestrians on the stores are higher while there were users sitting at the open terrace of the café store. Also, when pedestrians turned their faces to watch the café store, they did not purely watch the using situations of the open terrace, but also watched the atmosphere, decor and merchandise of the store through applying the opportunities of the users being on the seats.