In case you get stuck, the controls for Spirit are super easy:
Arrow Keys = Walk left and right, climb up and down ladders, climb up and down ledges, sit on benches.
Space Bar = Proceed through dialogue, interact with people and objects, cut grass, break rocks.
Enter = Main select button
Esc = Return to main menu.
And that's all there is to it! Now feel free to explore the world of spirit!
Don't see the answer to your question? Ask the project creator directly.