What must you do to indicate a lane change?

To indicate a lane change, it is essential to signal your intentions with indicators. This action communicates to other road users your plans and helps ensure their safety as well as yours. Using indicators is a fundamental part of safe driving practices, as it provides a visual cue to those around you about your next move. This is crucial in maintaining the flow of traffic and reducing the likelihood of accidents.

When indicating a lane change, you should activate your indicator well in advance of the maneuver. This allows other drivers to adjust their speed or position accordingly. Proper signaling is part of the rules of the road and helps foster a cooperative driving environment.

The other options do not promote safe driving practices. Waiting for other drivers to signal first can lead to confusion and potentially dangerous situations. Honking your horn is typically used as a warning or alert, not as a way to indicate your intentions, and changing lanes without signaling disregards the rules of the road and can result in accidents or collisions.