Moving from Oz most of my wardrobe consisted of sleeveless tops and I was more than a little concerened. I have worked on the basis that 3/4 of my legs and my shoulders should be covered. When I have worn sleeveless tops (not singlets) nothing has ever been said but I have been uncomfortable that I may offend.

Personally I do not find dressing here restrictive but I do not think it appropriate to be parading around it skimpy shorts and tops.

As for going to the Souq on thus / fri you could wear a bin bag and you will still be stared at. Personally I find it a bit un-nerving but they do not mean any harm.

I choose to moderate the way I dress as I do not want to offend but I have seen many dress as an 18 year old would on a Friday night out in Glasgow. (no offence is meant to any 18 year old from Glasgow)