In one of her talks, Kristina Höök observed that some users get really fed up with the comments delivered by Agneta and Frieda. Nevertheless, it also appeared that annoyance and irritation increased the emotional involvement with the task.

For our presentations, we may ask how embodied agents may help in increasing the emotional involvement of the audience or, phrased differently, how dialogs may lead to emotional enhancement of the material  [Astleneir (2000)].

An important difference with the Personas project is that our platform supports the actual merge of dialogs and the humanoid characters that deliver them in a unified presentation format, that is a rich media 3D graphics format based on X3D/VRML.

As a consequence, the tension between immersion and engagement may be partially resolved, since the characters delivering the dialog may be placed in their 'natural' context, that is a virtual environment.