What should you do when you see a yield sign at a roundabout?

When you approach a yield sign at a roundabout, it indicates that you need to give the right of way to any vehicles or pedestrians already in the roundabout before you enter. Looking to your left is crucial because traffic in a roundabout flows counterclockwise. By looking to your left, you can assess whether there are any vehicles approaching from that direction and determine if it's safe to proceed. This action helps ensure both your safety and the safety of other road users as you navigate the roundabout.

In contrast, stopping completely is generally not required unless it is necessary to avoid a collision, which can disrupt the flow of traffic in the roundabout. Speeding through the roundabout poses a risk of accidents, while waiting for a traffic light to turn green is not applicable since roundabouts typically do not have traffic signals stopping or controlling the flow of vehicles.