A hearing device is activated by operating the hearing device in an operating mode in a first phase after supplying energy to internal circuitry of the hearing device, by operating the hearing device in a reduced operating mode in a second phase and by operating the hearing device in a selectable operating mode in a third phase. Thereby, the hearing device user can examine a correct functioning of the hearing device before its insertion into the ear. In addition, the hearing device can thereafter be inserted without that a feedback signal is generated.