How agreeable are the people to being photographed?
Often, quite agreeable. I’ve found Cambodians to be very easy to photograph. If you want to photograph people the best advice I can offer is that you take an English-speaking local with you who can break the ice. If for example you want to take photos of somebody fishing or working in their fields, a thirty-second conversation facilitated by your local companion can make all the difference in the world. I have numerous photographs of people that I have exhibited (and sold) and in almost all cases I sought their permission and had chatted briefly with them beforehand.