What is the best practice for seeing better while driving in fog?

Using the lower headlight beam is the best practice for seeing better while driving in fog. Fog typically reflects light, and high beam headlights can exacerbate this by causing glare that makes it even harder to see. The low beam setting helps to minimize this reflection and provides better visibility closer to the ground, where the fog is densest.

While fog lights are designed to illuminate the road directly in front of the vehicle without causing too much glare, they are most effective when used in conjunction with low beam headlights. Opening windows for fresh air does not contribute to visibility and is not relevant for driving safely in fog conditions. Thus, the lower headlight beam is the most effective choice for navigating through fog safely.