The family member from his position on the interface of the interpersonal subsystem and his own personal subsystem must in turn try to decide whether the visitor is approaching him as a person including that aspect of himself that dose not belong to the group,
Or approaching him solely as a member of the group, Both visitor and member can become very confused, and it is possible to interpret a set of behaviors one way when in fact they have been intended in the other.
The following example may help to illuminate the way in which such confusion on the interface of the interpersonal and personal subsystems arises.
Let us assume that a male college student named Tom is visiting his roommate Bill Green’s family for a holiday weekend.
One evening Tom and the whole Green family parents, roommate, sister, and kid brother play a frolicsome game of Monopoly.
Throughout the game Tom and his roommate’s sister Joy, who is sitting next to him, engage in a running banter and repartee. Indeed, the entire family seems to enjoy a similar style of interaction.