When approaching a roundabout you will see a roundabout sign.

Reduce your speed to the posted speed limit or slower and be prepared to yield to pedestrians, cyclists and vehicles in the roundabout. When no traffic is approaching from the left you may proceed into the roundabout. If two vehicles arrive at the same time, the vehicle on the right should enter the roundabout first. When on the roundabout, you have the right-of-way over vehicles entering. Continue until you reach the street you wish to exit on, signaling your intention to exit in advance. As you exit, watch for pedestrians within the pedestrian corridor and yield the right-of-way to pedestrians and cyclists.