We often travel with people we know—taking a family vacation, for example, or bicycling around Tuscany with a group of friends. We quite naturally want to come home with pictures of them as souvenirs of the trip. Be sure to get these, but don't forget that you can also use members of your family and your friends to make your other photographs more effective.
My still-embryonic idea is to enlist the help of a local acquaintance who would wear a cheongsam (aka qi pao), and take the role of a sing-song girl. The photo shoot would take place in the streets of Yau Ma Tei, and in the parlor itself. Whether the parlor would allow it or not is an open question that will be answered when I'm there. The owners and clients seemed very laid back when I made these photographs.
Make use of people to give your images life and scale. If the facade of a particular building appeals to you, the picture may be that much better if you show people walking in front of it. They will give it scale and also let viewers know what sorts of people live there, how they dress, and the like. An outdoor café may be more interesting crowded with people than empty.