1. A method of guiding physical movement of a human subject, the method comprising: observing, via one or more cameras, a physical environment; identifying, with a computing device configured to process image data from the camera, a current three-dimensional position of a body portion of a human subject within the physical environment; obtaining, with the computing device, a model path of future travel for the body portion of the human subject; and projecting, via an image projector, a visual cue onto the human subject at the current three-dimensional position of the body portion, the visual cue indicating the model path of future travel for the body portion of the human subject.