What hand signal indicates a left turn?

The hand signal for a left turn is demonstrated by extending the left arm straight out horizontally, pointing directly to the left. This clear, universally recognized signal informs other drivers and road users of the intention to turn left. Using the left arm extended out aligns with traffic regulations and ensures that the signal is visible to others, enhancing road safety. Proper signaling is essential for effective communication among motorists, and using the left arm in this manner makes it clear and intuitive for anyone observing.