Final answer:
The proper way to signal for a lane change is to use your vehicle's turn signals.
Step-by-step explanation:
The proper way to signal for a lane change is to use your vehicle's turn signals. Before changing lanes, you should signal your intentions by activating the turn signal in the direction you want to move. This will alert other drivers of your intended movement and give them time to react.
For example, if you want to move to the left lane, you should activate the left turn signal before changing lanes. This will indicate to other drivers that you are planning to move left.
Remember to always check your blind spots and use your mirrors to ensure it is safe to change lanes.