WASD and arrows to move. T to drink almond water. E to open inventory. Find the key and get to the exit, but watch out, you're not alone.
If you're not careful, and you noclip out of reality you'll enter the backrooms, a maze of mono-yellow walls, soggy carpets, and constant soggy, wet carpets, spanning 4 million square miles with no end. And if you hear something, it sure as well heard you.