Here's how to indicate when you're going around a roundabout—this person does it perfectly. If you're travelling more than halfway around a roundabout, you have to signal right as you're going around, and then signal left as you pass the exit before the one you're taking. You always have to indicate left when you're exiting a roundabout—just like this example, or even if you're just going straight through. For safety, and to keep everyone moving efficiently, it's important to show others what yo