Until the task is carried out properly, warning information (such as ‘stay/hold for a while’) is preferably displayed on the screen 3. During the performance of the task, e.g. a data transmission, the “holding” of the mobile device is preferably supported in another embodiment by a corresponding “holding indicator”, e.g. a “cross-hair” on the screen 3, as shown in FIGS. 3A, 3B. This holding indicator is tracking the movement of the mobile device (e.g. by a gyroscope) and indicates whether the mobile device 1 is held incorrectly (FIG. 3A) or correctly (FIG. 3B). If the mobile device 1 is held incorrectly the holding indicator 15 (“cross-hair) is shown at a different position than the target wireless enabled device 11, which may additionally be indicated by another symbol 16, e.g. a red dot at the position of the target wireless enabled device. If the mobile device 1 is held correctly the holding indicator 15 (“cross-hair) is shown at the position of the target wireless enabled device, which may additionally be indicated by a symbol 17, e.g. a green dot at the position of the target wireless enabled device 11.