What is the proper hand signal for a left turn?

The proper hand signal for a left turn is achieved by extending the arm straight out to the left side, which clearly indicates the intention to turn left to other drivers and cyclists. This gesture is universally recognized among motorists, ensuring that your actions are predictable and compliant with traffic laws. By using this signal, you help maintain safety on the road, allowing others to react appropriately.

The other signals, such as bending the arm at a right angle or raising it, are designated for different actions, like making a right turn or stopping. Therefore, extending your arm straight out to the left is the correct and safest way to communicate a left turn to others on the road.