When you press space, the green circle (you) will reach out for a node (the yellow things) within a certain distance. Once you get to a point where you're moving tangentially to the circle created with it's center on the node and you a point on it, you will begin to orbit that node at a fixed distance. (if that last part didn't make any sense, just try and figure it out while playing) To stop orbiting a node, just release the spacebar
