The present disclosure relates to a method for operating an electronic device having a display and compass sensor, for interacting with a set of objects, each of the objects incorporating a magnet, said method comprising: obtaining an initial reading of the compass sensor signal; obtaining a current reading of the compass sensor signal until the compass sensor signal stabilizes; deducting from the obtained current reading of the compass sensor signal the initial reading of the compass sensor signal; comparing if the deducted compass sensor signal matches a predetermined compass sensor signal corresponding to the compass sensor signal obtained from the combination of 2 or more of said objects in a specific spatial arrangement relative to the electronic device, each object having incorporated a magnet in a specific position and in a specific orientation.