void Update () {
   fwd = this.transform.TransformDirection(Vector3.forward);
   if (Physics.Raycast(transform.position, fwd, out hit, 10)) {
    nameObject = hit.transform.name;
   } else {
    nameObject = "";
   }
  }
   
  void OnGUI() {
   if (nameObject!="") {
    if (nameObject!="Terrain") {
     pointOnScreenMin = personCamera.WorldToScreenPoint(hit.collider.gameObject.renderer.bounds.min);
     GUI.Label(new Rect (pointOnScreenMin.x,pointOnScreenMin.y, 120, 20), nameObject);
    }
   }
  }