UAE is a safe place to travel too however be aware you are a guest in a predominantly Muslim country and you need to dress and act accordingly....not shorts or sleeveless shirts. NEVER take photos of covered ladies!! Ask you guide to help you so that you don't offend anyone. Infact if you ask a muslim to help you one rises in their view and they will graciously over see "mistakes"
Generally try to avoid the time over Ramandan if that is not possible then avoid eating and drinking in public while ashore and rmember Fridays are their special day of worship and that Mosques are not always open to non believers even less to take photos!!!