As a driver, you should use signals to inform, not instruct. Giving the correct signals at the right time and in the right way is an essential part of good driving, and your only way of communicating with other road users. You should never use signals to give orders to other drivers; a signal never gives you the right to make a move, such as a lane-change on a motorway, on the assumption that other drivers will give way. The art of proper signalling requires practice as well as learning. The ground rules are simple: use only those signals described in the Highway Code. Do not make up your own signals or copy those adopted by other drivers. Even if a personal signalling device seems perfectly clear to you, it could be misleading to others who may not understand what you are trying to ‘say’.