I assumed (incorrectly, it seems) the former. Otherwise the side it’s written on is wholly irrelevant. Fooled me!

Apparently I as a human (or so I thought) would fail this test because I read it as the second: “Push To Open”. The blind person being on the other side of the glass from me and the instructions telling me to push to open, I would’ve answered that I need to push the door to open it for them.