New Game

My granddaughter has a new game that she plays with us. While one of us is holding her, she makes her attempt/plea to get down to do an activity that she was not allowed to do. So, if I won't let her down, she motions for someone else to take her. Of course she is so darn cute that the other person feels honored to be chosen to hold her. Little does that person know that he or she is being played, because as soon as he/she takes the tike, she tries to get down. How do the children learn to do these games at such an early age?