For the other two interactive kiosks, you will need your entrance ticket. Remember I mentioned earlier there is QR code on your entrance ticket? What you need to do is just place the entrance ticket on your hand (with the QR code facing up, as shown in the picture below) and move towards the sensor, then a 3D image (Komtar/ Penang ferry) will be projected on the screen together with your image as if you are holding the Komtar building or Penang ferry.