Abstract
We conducted two experiences programs in July 2015 and July 2016.The two programs have the same configuration. In 2016, we used visual dialogue by graffiti as a tool for communication with participants and staff. It compared with 2015 which did not use graffiti as a tool. When using the graffiti tool, the atmosphere of the venue was very active. We found that there is no obvious difference in the measurement by the "thermometer of impression". We need to consider new methods of evaluation.