A social experiment for the revitalization of the public space is an important issue today. This study focus on the activity caused by the social experiments area setting the street furniture in western sidewalk of north building of Grand Front Osaka. This study first verifies the yearly change as well as effect caused by events of activity. Second, I analyze the type division of each activity and change of atmosphere of space chasing that user in the public space. As a result, this study makes clear the difference between every season and weekday / holiday and clarify the appearance of repeaters and the around effect of the activity.