How to create a particle(in Random position) from Player?

How to create a particle(in Random position) from Player?
In fact I want to create the random clouds in some distance of player.
the Player is a AirPlane.

One easy way is:

  • Place the particle emitter as a child of the airplane (then it follows the plane)
  • Adjust the radius of the emitter (ellipsoid size, min emitter range), so it spawns particles xx meters around the player