When setting the left side mirror, where should your head be positioned?

When setting the left side mirror, your head should be positioned against the closed left window. This positioning allows you to adjust the mirror to provide the best view of the road and any vehicles or objects in adjacent lanes. By leaning your head against the window, you can minimize blind spots on that side of your vehicle, ensuring that you have a better perspective of the area next to you when making lane changes or maneuvers.

Proper mirror adjustment is crucial for safe driving, as it enhances your ability to see approaching vehicles and pedestrians. Other positions, such as away from the window or in line with the rearview mirror, do not provide the same effectiveness in eliminating blind spots and achieving optimal visibility.