My own application of Buys Ballot Law (as a mariner with a BS degree in Meteorology) was to face the wind, throw your right arm as far back as it can go, and you’re pointing at the center of the low pressure system. Not sure where I got that from. I’d like to think it was on my own, but it probably wasn’t.
But you seem to be missing a critical distinction in face v. back, that is what direction the low is. For face the wind, it’s to the right, for back to the wind, it’s too the left. Half-full v. half-empty?
Also, you don’t have to go on the wing to know what direction the wind is from. If you’re using this, the sea state will probably tell you the wind direction without going outside,