Round-a-What?

We have a new shopping center here in Birmingham-no suprise, but what is a suprise is right in the middle they "installed" a round-a-bout. Sometimes called a round point. How to proceed through a round-a-bout is second nature to me now--after using them hundreds of times in Africa, but they aren't second nature to about 95% of people in Birmingham, obviously.

Now, just in case you don't know, the purpose of a round-a-bout is that traffic should not have to stop at an intersection--you yield going in and yield going out-and there is no backup no matter how busy the intersection is. That is the principle at least. Although I have never seen it work perfectly, us here in "the Ham" still need A LOT of work.