A method includes receiving inputs indicative of a user state of a user. The inputs include sensor inputs from one or more sensors and/or user inputs received from a graphical user interface displayed. The method includes determining a collective user state based on the received inputs and determining one or more possible activities for the user and one or more predicted outcomes for each activity based on the collective user state. The method includes executing one or more behaviors that evaluate the one or more possible activities and/or the corresponding one or more predicted outcomes. Each behavior models a human behavior and/or a goal oriented task. The method further includes selecting one or more activities based on the evaluations of the one or more possible activities and/or the corresponding one or more predicted outcomes and sending results including the selected one or more activities to a screen.