When approaching a roundabout, you should:

Yielding to traffic already in the roundabout is crucial for maintaining the flow of traffic and ensuring safe navigation. Roundabouts are designed to allow continuous movement, and vehicles inside the roundabout have the right of way. When you approach, it's important to assess the situation and wait for a safe gap in traffic before entering. This practice minimizes the risk of accidents and helps facilitate smoother transitions for all vehicles involved.

Speeding up to enter quickly can lead to dangerous situations, as it might force you to merge into traffic without adequately assessing your surroundings. Making a complete stop may be unnecessary unless there’s a specific reason, such as pedestrians or signs indicating otherwise. Consistently changing lanes also disrupts the flow and can create confusion and potential collisions. Therefore, yielding to traffic already in the roundabout is the safest and most effective approach.