Dubai

At a meeting: In Dubai, women's pantsuits should be sheeny and glam; men's duds are buffed, black, and paired with slim ties.

On the street: The mall, not the street, is the social arena. In Dubai, girls in T-shirts (their shoulders covered out of respect and as a remedy against the freezing AC blasts) tote the latest Louis Vuittons. Carry a pashmina to cover up in case you find yourself in a traditional souk—although you'll see miniskirts and shorts, they're for people who know the city well enough to avoid ultra-conservative quarters. On men, reflective aviators abound, as do Gucci sandals.

At a party: Go glam to the gills: No Swarovski is too shiny and no Giuseppe Zanotti is too high. Men wear Y3 trainers and tailored blazers over graphic tees.

P.S. Put on clean socks if you're going to a local's house in Dubai—you'll leave your shoes at the door.

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