What is the correct hand signal for a left turn?

The correct hand signal for a left turn is indicated by extending the arm straight out from the side of the vehicle. This signal is universally recognized and is an important practice for communicating your intentions to other drivers and pedestrians when a vehicle's turn signals may not be visible. By extending your arm directly out, you clearly indicate that you plan to turn left.

In different contexts, other hand signals such as a bent upward arm might signify a right turn, while a bent downward arm is used to indicate a stop. Waving the arm back and forth does not represent any conventional turn or stop signal and could create confusion among other road users. Understanding these hand signals is crucial for safe driving and ensuring that your intentions are clearly communicated on the road.