If I say I ride the bus. Does it mean im a driver or passenger? What is the difference between a chauffeur & driver?
If you say "I ride the bus" you are a passenger. If you're a driver you say "I drive a bus" since the verb "drive" implies you are behind the wheel.
As far as a difference between a chauffer and a driver goes: A driver is a person hired to operate a motor vehicle: a taxi, a bus etc. A chauffer is a specific "type" of a driver. A chauffer is hired to operate a private car, especially luxury cars such as limousines for example.