If a person levitates on a moving bus, they would remain stationary relative to the bus due to Newton's first law of motion, as they share the bus's speed. If the bus changes speed, the person would move relative to the bus, either backward or forward, depending on the direction of the speed change. The method of levitation could influence the outcome; for instance, levitating by opposing gravity would adhere to Newton's laws, while reducing mass might introduce other factors like air movement. The discussion highlights the complexities of physics in hypothetical scenarios that defy conventional laws. Ultimately, the question serves as a thought experiment rather than a practical inquiry.