Interaction The podium is separated into two parts. The open space and the closed space. The open space is formed by three stage platform in the front of the podium. It is the main function space of the podium. People can have a speech and a performance there. The other spaces are for the function of the transportation and the exhibition. The podium encourages people to interaction with each other. The people in the different stage, the people in the podium and outside the podium can all have an interaction.