http://www.opmsang.sppn.af.mil/Newcomer's_Handbook/NOC1.htm
DO NOT stare at, speak to, or pay undue attention to veiled women or to people who are praying. DO NOT photograph veiled women, people praying, or any scenes in poorer sections of the city. DO NOT photograph any person without his permission, or any airport facility, port, or government installation without official permission. Aerial photographs of Saudi Arabia are also prohibited. DO NOT enter mosques or the holy cities of Mecca and Medina unless you are a Muslim or a participant of an organized sanctioned tour. DO NOT attempt to transport or mail prohibited items into Saudi Arabia; caution anyone who might mail such items to you. DO NOT stay on the downtown streets during prayer times, especially near the Great Mosque and Fort areas. DO NOT eat, drink, chew gum, or smoke in the presence of Muslims during the month of Ramadan during daylight hours. DO NOT urge an Arab to uncover his head, indoors or outdoors. DO NOT display physical affection (holding hands, kissing, etc.) with members of the opposite sex.
