Which of the following is true regarding steering a motorcycle at very low speeds (under 15 km/h)?

1. You steer by turning the handlebars in the direction you want to go.
2. You steer by countersteering (pushing the handlebar in the opposite direction).
3. You must lean your body heavily in the opposite direction of the handlebars.
4. You steer using body weight shifts only, keeping the handlebars locked.