Agents that interact in complex social situations need to take the social situation in consideration in order to perform believably.
We argue that, since social identity is an important factor in the social situation, agents should incorporate social identity theory in their behaviour.
In addition, social situations often present social dilemmas with expected rational choices, and social identity can influence the agent to deviate from the rational choice (e.g. favor other agents that share the same social group).
However, in some situations, the rational choice may be the expected. As such we propose that to be believable, agents should take into account individual rationality and social bias in their decision making. In fact, we believe that finding the dynamics between the social bias induced by social identity and the rational motivation is one of the challenges of building believable social agents.
Furthermore, we would like to stress that, in order to be believable in social situations and social dilemmas, agents need the ability to anticipate and take others in consideration, since this is a crucial point for achieving any kind of social intelligence.