Here we see Viki playing with a rubber hose, holding one end in her mouth. She spends considerable time with the other end of the tube near her ear, evidently listening to the sound of her own breathing. Viki also brings the tube up to her nose, then apparently doesn't like the result. At the end we see Viki using a finger to plug the end of the hose.

Once again we see just how curious Viki was about the world she lived in. Curiousity allows children to learn a great deal about the world they live in. That information can be vital to survival as they acquire the responsibilities of adults.