In this paper author focuses on mental representation of ethnic and racial groups in Gabčíkovo village in Slovakia. The objective is to show, that to explain ethnic and racial classification, we need to regard two factors. The first one is social interactions. It means the social, cultural, historical and political conditions of social phenomenon. The second is the cognitive processes of the mind: in what ways the human mind operates particular external information. To explain ethnic and racial classification, the author uses the framework of cognitive anthropology, in particular theory of folk sociology.