A method for user interaction with a three-dimensional virtual world is disclosed. The virtual world may comprise one or more public spaces and one or more private spaces. A user may be represented in the virtual world by an avatar. The user may manipulate the avatar via a user interface. An emotional state of the user may be detected via the interface. The user's emotional state may be mapped to one or more features of the avatar that are perceptible by other users. Thus, other users may perceive the user's emotional state through perception of the avatar.
MAPPING USER EMOTIONAL STATE TO AVATAR IN A VIRTUAL WORLD