We build a sim ulationmodel imitating the structure of human reasoning in order to study how people face a Repeated Prisoner’s Dilemma game. The results are ranged starting from individual learning in which case the worst result-defection- is obtained, passing through a partial imitation, where individuals could end up in coop erationor defection, and reaching the other extreme of social learning, where mutual cooperation can be obtained. The influence of some particular strategies on the attainment of cooperationis also considered.