What should a passenger do when getting on a motorcycle?

When a passenger is getting on a motorcycle, it is important for them to sit as far forward as possible without crowding the rider. This position helps maintain the motorcycle's balance and stability during the boarding process. By sitting forward, the passenger can better align their center of gravity with that of the motorcycle, reducing the chance of tipping it over when they get on.

In addition, the positioning helps the rider maintain control and comfort, allowing for a smoother ride. Passengers should be aware of their weight distribution and avoid shifting the motorcycle's balance by positioning themselves too far back. This technique also allows both the rider and passenger to maintain a comfortable riding posture once they are on the bike.

The other options present practices that could lead to unsafe riding conditions. Getting on after the engine starts can cause unanticipated movement, holding onto mirrors can compromise their stability or function, and keeping both feet off the footrests can be hazardous, as it may prevent the passenger from stabilizing themselves effectively during ride preparation.