Headlight Adjustmet "How To's"

[magwakeenercew2jh]

Doing some fine tuning last night on the new amber LED's in the instrument cluster had me driving down the road in the dark.

I don't like to drive at night. Never even did when I was a pup. It's waaaay worse now.

Last night was my first "in the real dark" drive since I put the truck together.
It was kinda like driving like the first pic attached.

I know where the up and down screws are on the headlight. Put 'em in myself.

But what do you folks do to get a good measure on the height and width?
Touch and go out on the street in the dark? Up against the garage at a certain distance? Or ??????

Thanks.