The Type of Play that Yvonne Displayed is Cooperative play. Frist of all, Yvonne and Peter played true social interaction which is playing doctor and patient. Also, Yvonne understood the role character. They organize their play around a distinct theme and take on special roles based on the theme, for example Yvonne began to check Peter’s heartbeat and asked if he has gotten a fever or not and they alternated their roles. Besides, Yvonne have the roles that she wants to play, for example she takes the initiative to take a stethoscope and asked Peter if he would like to play together.