The more you can see Kim's vagina, the more she smiles and waves. It's just an automatic response programmed into her at the Japanese factory. Stick a finger in that thing and her voice box lets out a synthesized squeak. If you insert cash into her cleavage slot, the squeaks get louder. Pretty sophisticated animatronics.
Photo Credit: AKM-GSI [gallery ids="1391652,1391502,1391512,1391522,1391532,1391542,1391552,1391562,1391572,1391582,1391592,1391602"]