Basically, you just need to know how the string is held at the bridge end, the other end is just fed through a hole & wound onto the post of the tuner peg.
Ha,yes true. But it amazing what we experienced folks think simple is not completely intuitive:
Getting the button out-- pliers might be a person's first choice, but damage buttons. This is where the little U shaped cut out on the $2 Dunlop Peg Winder is better than the $10 D'Addario Pro Winder. (Others may prefer one over the other).
Getting those buttons to hold down the ball on the new strings by pushing that button down while gently jerking the string to set both, holding tension on the string while getting it started after you put the end through the peg, is completely simple when you've done it a few times, but sort of like reinventing he wheel if you haven't'
Deciding how many turns of string represent how much slack and discerning, if you too need that pencil for putting a bit of graphite on the nut if the string seems to need some lubrication,
And what to do with all that left over wire, (clip it with what-- you mean I need a wire clipper?-- or maybe that $10 D'Addario Pro Winder that didn't like to pull my buttons easily will come in handy here with its built in wire clipper. Will toe nail clippers do?-- (only if you don't mind tossing them after).
And then there is the question of: "Do I take all the strings off first?"
These all the things most of us do without thinking on the fly. But we had to learn them somewhere.
I have been interested to see beginners think the string is the right length straight out of the envelope only to discover after a half a dozen turns they are no where close to tight and have a big round clump of wire around the peg with no end in sight.
What seems obvious to those of us who have done it often can seem completely daunting to a first timer.
Watching someone do this, in person or on video will make all this babble of words unnecessary! HaHa