Originally Posted by Johnny G

Vietnam has got some beautiful women and beautiful locations. It is best to hire a guide for a few dollars a day as not too many people speak English. Keep a low profile while shooting. Guard your camera equipment. Don't wear jewelry and keep your watch in your pocket. Some of the girls in hotel spas offer "Extra services" at quite reasonable rates, so I've heard. Make sure to tip your guide, drivers, waiters, and anyone else who provides you a service. If you stop for meals along your journey, pay for the meals for your driver and guide. Lonely Planet has an excellent guidebook.