What can you do to signal your intention to change lanes safely?

Activating your turn signal is the most effective and universally recognized method to communicate your intention to change lanes to other drivers. This action alerts others around you, indicating that you plan to merge into another lane, which helps prevent potential accidents. Using the turn signal not only is a crucial part of safe driving practices but is also mandated by law in most places. It provides a clear, visual cue without ambiguity.

While other options like using your horn or waving your hand may convey some awareness of your intentions, they are not standard signaling methods for lane changes and may confuse other drivers. Doing nothing certainly does not help communicate your intentions and can lead to unsafe driving conditions. Thus, activating your turn signal remains the best and safest choice when changing lanes.