Long Papers.- COMPASS2008: Multimodal, Multilingual and Crosslingual Interaction for Mobile Tourist Guide Applications.- Discovering the European Heritage Through the ChiKho Educational Web Game.- Squidball: An Experiment in Large-Scale Motion Capture and Game Design.- Generating Ambient Behaviors in Computer Role-Playing Games.- Telepresence Techniques for Controlling Avatar Motion in First Person Games.- Parallel Presentations for Heterogenous User Groups - An Initial User Study.- Performing Physical Object References with Migrating Virtual Characters.- AI-Mediated Interaction in Virtual Reality Art.- Laughter Abounds in the Mouths of Computers: Investigations in Automatic Humor Recognition.- AmbientBrowser: Web Browser for Everyday Enrichment.- Ambient Intelligence in Edutainment: Tangible Interaction with Life-Like Exhibit Guides.- Drawings as Input for Handheld Game Computers.- Let's Come Together - Social Navigation Behaviors of Virtual and Real Humans.- Interacting with a Virtual Rap Dancer.- Grounding Emotions in Human-Machine Conversational Systems.- Water, Temperature and Proximity Sensing for a Mixed Reality Art Installation.- Geogames: A Conceptual Framework and Tool for the Design of Location-Based Games from Classic Board Games.- Disjunctor Selection for One-Line Jokes.- Multiplayer Gaming with Mobile Phones - Enhancing User Experience with a Public Screen.- Learning Using Augmented Reality Technology: Multiple Means of Interaction for Teaching Children the Theory of Colours.- Presenting in Virtual Worlds: Towards an Architecture for a 3D Presenter Explaining 2D-Presented Information.- Short Papers.- Entertainment Personalization Mechanism Through Cross-Domain User Modeling.- User Interview-Based Progress Evaluation of Two Successive Conversational Agent Prototypes.- Adding Playful Interaction to Public Spaces.- Report on a Museum Tour Report.- A Ubiquitous and Interactive Zoo Guide System.- Styling and Real-Time Simulation of Human Hair.- Motivational Strategies for an Intelligent Chess Tutoring System.- Balancing Narrative Control and Autonomy for Virtual Characters in a Game Scenario.- Web Content Transformed into Humorous Dialogue-Based TV-Program-Like Content.- Content Adaptation for Gradual Web Rendering.- Getting the Story Right: Making Computer-Generated Stories More Entertaining.- Omnipresent Collaborative Virtual Environments for Open Inventor Applications.- SpatiuMedia: Interacting with Locations.- Singing with Your Mobile: From DSP Arrays to Low-Cost Low-Power Chip Sets.- Bringing Hollywood to the Driving School: Dynamic Scenario Generation in Simulations and Games.- Demos.- Webcrow: A Web-Based Crosswords Solver.- COMPASS2008: The Smart Dining Service.- DaFEx: Database of Facial Expressions.- PeaceMaker: A Video Game to Teach Peace.- A Demonstration of the ScriptEase Approach to Ambient and Perceptive NPC Behaviors in Computer Role-Playing Games.- Multi-user Multi-touch Games on DiamondTouch with the DTFlash Toolkit.- Enhancing Social Communication Through Story-Telling Among High-Functioning Children with Autism.- Tagsocratic: Learning Shared Concepts on the Blogosphere.- Delegation Based Multimedia Mobile Guide.- Personalized Multimedia Information System for Museums and Exhibitions.- Lets Come Together - Social Navigation Behaviors of Virtual and Real Humans.- Automatic Creation of Humorous Acronyms.