The simplest way is in front of a wall about 6-10ft away so you can see where the beam is pointing. Even them out. As for how far down to point them, its trial an error. Your low beams should not be blinding oncoming traffic so adjust them just below the point where they are annoying.
Thanks, ya I figured just point it at like the garage but I just did not know how far down they should be pointing. What I might do is take my dads f150 and point it at the garage to see where his. Then just adjust mine to where his were pointing.
Then go to my moms and do the same with her exploder for the fogs.