Free Software Foundation

Not trying to be facetious, but you just kind of do it. I think it might be something that you just subconsciously keep track of once you really become aware of it. I remember it seeming like magic until I was maybe 15 or so, and then I had landmarks for each direction in my mental map and could figure things out in reference to them. After a bit of that, I could mostly stay oriented when traveling by land, and now it’s not an issue even when I fly somewhere. I went to England for the first time last year, and I had the cardinal directions sorted probably by the time I’d walked from the train to my hotel.

Once you’ve got it down, you just sort of do it on autopilot.