The invention relates to a method for using a determined state of mind of a vehicle user while a vehicle (1) is in operation. According to the invention, the state of mind of the vehicle user is displayed on a map of a navigation system (5), the state of mind is transmitted to a central computer unit (3) connected to the navigation system (5) and exchanged with other vehicles (2) of a vehicle fleet , - based on transmitted moods of the vehicle user and / or transmitted moods of vehicle users of the other vehicles (2) in conjunction with map data and traffic information, a spatial-temporal evaluation is carried out and a mood map is created.
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