Ha, I had to go play something and look!
Being self taught at the age of 50 thirteen years ago, before all this Internet info was really rolling, I do remember spending a month or so on muting ringers, but it's long since been habitual and those details forgotten. Reading all this technical technique discussion, I'm thinking geez, it's not that hard and it seems like folks way over-think this, and I don't do any of these "proper" things. But adult learning methodology dooes vary tremendously with each individual, so it's cool that all these suggestions are coming in for the OP.
So for what it's worth, here's what I'm doing. I basically keep my thumb on the upper edge of the neck pickup where I spend most of the time, and when I want the edgier bridge sound it goes to rest on the face of that pickup, but up against the E string if not being played. I mostly play with my index finger, then some with the middle and with the ring finger if things get really busy or the index needs a little break.
But I looked, and here my little finger is curled a bit and barely resting on the E most of the time when it's not being played! The darned things lifts up a bit when I do play the string, and goes back down when the note is supposed to be over, all by itself! Huh. That must have been what I found that works back then.
Then I noticed that likewise my left pinky us sometimes sitting lightly on the G and maybe D strings when not doing anything else, and it gets out of the way when playing on those strings as my hand rotates back to fret them.
And then I even noticed that when playing on the A or D that my plucking finger lands on the lower string as a part of plucking the upper one! I had no idea I was doing all this stuff!!!
I don't know if that aligns with anybody's "real" technique, and I really haven't even thought about it in over a decade. Point for the OP being find out whatever works for you most efficiently, naturally and comfortably, and play the heck out of it for a couple of months, and you'll never have to go back and worry about it again.