Remember that most cultures are much more conservative than ours. Watch what you say, both your gesture and facial expressions. Your hosts are giving you the best they have. Be careful not be judgmental even in your humor. Keep your hands at your sides until you learn what gestures mean.
Gestures can have VERY different meanings in other cultures.
Learn to laugh at yourself. Your hosts will appreciate your efforts to learn. Reflect on the cultural and economic differences Talk and write about your insights into the culture and your perceptions of what is going on in and around each of you. Talk about how to learn from the differences. Do this in private where your reflections will not be misunderstood by your national hosts.