Question

1. how do you activate headlights, and when do you use them?

turn the end of the control lever once; use them in low visibility weather and at dawn/dusk/night.
turn the end of the control lever once; use them while youre parked and not moving so others can see you.
turn the end of the control lever twice; use them in low visibility weather and at dawn/dusk/night.

Explanation:

Headlights are activated by turning the control lever end once, and they are required in low visibility (like rain, fog) and during dawn, dusk, or night to ensure visibility. Parked vehicles use parking lights, not headlights. Turning the lever twice typically activates high beams, not standard headlights.

Answer:

Turn the end of the control lever once; use them in low visibility weather and at dawn/dusk/night.