I found that just by standing near the wall and pressing space, and holding it for a little bit, without moving with W A S D works best for wall jumping!
Well, it wasn't in the tutor, I rammed a wall, bounced off it into the next one. I tried to go farther - but it kept coming off and I didn't have enough inertia to run higher.
Honestly, about five minutes as a woodpecker tried.
