Patpong (Bangkok, Thailand): Yes, that Patpong. If go-go bars and sex shows aren't your style, you'll still find plenty to do. After you're finished shopping in the huge night market, you'll see plenty of restaurants, pubs, and discos that cater to folks who prefer more traditional nightlife.
Disco Lives! (Laos): Go to a disco . . . any disco. It's like a bad junior-high dance and just as innocent. In the basement of Vientiane's Lao Plaza Hotel is a reasonable big-city facsimile, but ask around in any small town for what's going on. The music is Asian pop, but it's refreshing to watch young gentlemen ask the ladies to the floor with a bit of pomp and circumstance, and then it's cheek-to-cheek or stilted boogie until the big cheer when the music stops. It hearkens back to an America of the 1950s.
Ho Chi Minh City (Vietnam): From the tawdry to the socialite scene, you'll find it in Ho Chi Minh City (Saigon). With rooftop garden bars like Saigon Saigon and cool spots like Q Bar, the city has a rollicking scene. Most evenings begin with an elegant (but very reasonable) French or Vietnamese dinner; then it's bar-hopping time in the compact downtown, mingling with trendy locals and fun-loving expats.
Singapore: Nightlife is becoming increasingly sophisticated in Singapore, where locals have more money for recreation and fun. Take the time to choose the place that suits your personality. Jazz club? Techno? Cocktail lounge? Wine bar? Good old pub? It has it all.
Bangsar (near Kuala Lumpur, Malaysia): Folks in Kuala Lumpur know to go to Bangsar for nighttime excitement. A couple blocks of concentrated restaurants, cafes, discos, pubs, and wine bars will tickle any fancy. There's good people-watching, too.