Natural and Multimodal Interactivity Engineering - Directions and Needs.- Natural and Multimodal Interactivity Engineering - Directions and Needs.- Making Dialogues More Natural: Empirical Work and Applied Theory.- Social Dialongue with Embodied Conversational Agents.- A First Experiment in Engagement for Human-Robot Interaction in Hosting Activities.- Annotation and Analysis of Multimodal Data: Speech and Gesture.- Form.- On the Relationships Among Speech, Gestures, and Object Manipulation in Virtual Environments: Initial Evidence.- Analysing Multimodal Communication.- Do Oral Messages Help Visual Search?.- Geometric and Statistical Approaches to Audiovisual Segmentation.- Animated Talking Heads and Evaluation.- The Psychology and Technology of Talking Heads: Applications in Language Learning.- Effective Interaction with Talking Animated Agents an Dialogue Systems.- Controlling the Gaze of Conversational Agents.- Architectures and Technologies for Advanced and Adaptive Multimodal Dialogue Systems.- Mind: A Context-Based Multimodal Interpretation Framework in Conversational Systems.- A General Purpose Architecture for Intelligent Tutoring Systems.- Miamm — A Multimodal Dialogue System Using Haptics.- Adaptive Human-Computer Dialogue.- Machine Learning Approaches to Human Dialogue Modelling.