1. analyzing interaction or designing virtual humans Jonathan Gratch Stacy Marcella Arjan Egges Anton Eliens Katherine Isbister Ana Paiva Thomas Rist Paul ten Hagen Dagstuhl WG 2

2. perspectives : human-ecological -- h-h interaction ‘in nature’ media theory -- ‘bag of tricks’ functional -- ecology of interaction

3. ecology of interaction people respond to ‘unnatural stimuli’ what is natural depends on context people adapt to interaction interaction is negotiation

4. affordances for interaction what is the (implicit) graph and/or space? what is the desirable path through this space? what techniques are used to cue users …? where did guidance fail? future work: case studies VHUMAN workshop 8-10 oct