Keep to the right
Watch for cars coming from every direction as...
They. Will. Cut. You. Off.
Cars in the roundabout have right of way over cars entering the roundabout
Use your blinker: "270 degrees at Arch Roundabout left blinker for first 180 degrees, then right for next 90 degrees" (huh?)
Cars have the right of way over pedestrians - who shouldn't be out there anyway
If you get lost, use landmarks - Aspire Tower, West Bay, Fanar (that's why the buildings are there)