To provide a character form such as a simulation pets or plushie, which can spontaneously perform exchange of communications and intercommunication mutually.

There is provided a simulation pet or a plushie as the character form that is a device containing a computer and being electrically moved, and having a portion corresponding to the body. The simulation pet walks following its user. The simulation pet includes: a greeting signal transmission unit for wirelessly transmitting "a predetermined greeting signal by a simulation pet" so that other simulation pet in a near area can receive it; and a greeting signal reception unit for receiving "a predetermined greeting signal by a simulation pet" wirelessly transmitted from other simulation pet in a near area so that present simulation pet can receive it.