When you spot a motorcycle, say out loud either "Motorcycle!" or "Motorbike!" Once a motorcycle is spotted no other player can receive points for spotting it.
If you spot a motorcycle but another player says "Motorcycle!" first, that player is awarded the point.
If two players say "Motorcycle!" at the same time, each player is awarded one point.
Points are only awarded for motorcycles that have a Rider on them. Parked motorycles do not count unless there is a Rider on it.