How do I aim headlamps?

Ray, here are some instructions :

"Instructions

1 Park the vehicle close to a flat wall. Mark the horizontal and vertical center lines of the low beam lights with masking tape in order to have a reference point. Once marked, move your vehicle 25 to 30 feet away from the wall.

2 Locate the aiming screws on the light assembly. For stock headlights on the Corolla, there will be three screws total; one on each side and one at the top.

3 Turn the screw at the top of the assembly for vertical adjustments until the low beam light aims 2 inches below the horizontal center line.

4 Turn the screw on the left side of the headlight for horizontal adjustments to the right and the screw on the right side for horizontal adjustments to the left. Turning the screw moves the retaining ring and the adjusting plate within the headlight assembly against the tension of a spring, which in turn adjusts the headlight beam. The lights should be aimed just right of the vertical center line. from here. Hope this helps, good luck.