Ramadan not much different, shops open later, nightlife bit more subdued. Just don't be on the road at Iftar (Dusk) as starving and dehydrated Muslims rush home to break their fast. If you cross into Sharjah, for example to go to the "Blue" Souk-where great bargains can be driven-be aware that it is a little stricter-so don't eat, drink or smoke in public during daylight, and women should cover shoulders and to knees. No problems really in Dubai, though one should be considerate of the feelings of the majority religion there.