This project aims to explore the use of point lights and movement in autonomous robots
to effectively communicate and express the internal state of the system. The project uses
a tangible user interface platform to model contextual scenarios. Different expressive
models are designed and evaluated iteratively. It is the idea that the use of expressivity
in autonomous robots will allow robots to integrate better in a human robot interaction.
The project describes the development of an autonomous robot with motor and light
actuators used to prototype three different behaviours. The behaviours are evaluated by
13 test participants. The conclusion of this study rejects the null-hypothesis, and provides
information of how gestures in robots may be more effective than light behaviours.