The most interesting thing we got to do was to help with a community needs assessment: a four-page questionnaire regarding the health, nutrition, and quality of life of a household. We accompanied local church members in going door-to-door in a few different neighborhoods. It was really a unique experience to get to visit people in their homes, to see what their life is like, and to have an excuse to ask them lots of personal questions. You don't get that kind of interaction when you stay put in a centralized location (e.g. a medical clinic or construction site).
I expect I'll write some more about the community assessment work as it relates to broader questions of short-term missions towards the end of this week.