It needs to offer unique and different experiences than other cafes. The cafe could draw people from multiple cultural groups to participate and experience different cultures. Arts at City Hall can expand circle of elite. Incorporate literature, performance, visual arts into City Hall. Ceremonies of the different cultures of Seattle Citizens could take place at City Hall.
Art can help make it a city hall inclusive of all of the people of Seattle.
Public Spaces need to be made inviting. They should look nice with lots of things to do there, and make you want to go there. The challenge to be neighborly is to create programming and activity. Each element adapts. The water element in the plaza would divide people rather than bring them together.