ASK BEFORE YOU TAKE A PHOTO – In Cambodia a smile is often a sign of shyness or discomfort, so don’t ever presume it’s okay to take a picture of someone. Ask first – if you receive a nod along with a smile, feel free to snap away! Also remember that many Cambodians will not want their photo taken in a group of three, as it is believed that this will bring bad luck to the person in the middle.