1. A method of assisting an individual in achieving a desired pattern of behavior, the method comprising: providing to the individual a robot, the robot including moving head and eyes and programmed to make eye contact with the individual, such robot also having an interface for communicating with the individual, such interface including at least one of a display, a speech interface, and physical movement of the robot; wherein the robot includes: a relationship management module that measures state of a relationship with the individual to determine a current state of the relationship, and an interaction module that implements a behavior model for the robot's interaction with the individual, such behavior model causing a change in interaction of the robot with the individual based on what the relationship management module determines to be the current state of the relationship, so that the behavior model assists the individual in effecting the pattern of behavior.