this paper is a study on children's social interactions in role-play. The aim is to try to highlight how children with other develop social skills and how to further motivate children tosee, understand and manage their reality in role-play by highlighting the characteristics of afunctioning role-play. I would also highlight the importance of pedagogue´s role in relation tochildren's social skills in role-play. The purpose flows into these issues, what distinguishes afunctioning role-play? Can the children in role-play influence their thinking to developunderstanding of others and the environment and if so, how? What significance does pedagogue´s role in children's role-play? I used out of a qualitative methodology to carry out this investigation. I chose to gather information for my study using a passive monitoring method, which i wrote down in detail the children's verbal and physical communication of the role-play, and even pedagogens relation to children's role-play. The results show that children in role-play are playing with others and use play signals and playrules in order to develop therole-play and social skills. This means that the language of both the physical and the verbalplay an essential role for the understanding of these elements. Playsignals is an understandingof what is real and not, by using movement, gestures and facial expressions, but it is noteveryone who understands the signals. To develop a successful game also requires thatchildren in role-play relate to playrules. These are reciprocity, consensus and take turns. There are other factors that affect social skills and characteristics of a functioning role-play. Examples of these are creativity and imagination. The result also shows how the teacher influences on children's role-play in different ways when they integrates in role-play, and also play materila in preschool affects children's play.