Final answer:
When a driver extends their hand out the window and points it straight to the right, it means that they are signaling to turn right.
Step-by-step explanation:
When a driver extends their hand out the window and points it straight to the right, it means that they are signaling to turn right. This is a common way for drivers to communicate their intentions to other drivers on the road.
By extending their hand and pointing in the direction they plan to turn, drivers help ensure safe and orderly traffic flow.