The theories of transnational migration offer such a form of experience and identities, which is not anchored in the assumed unity of place, culture and identity, touched with ideology. In this sense, the identities of migrants are usually formed in the discourse of nationality; their nationality relations revolve around the loyalty to the nation-state and the imaginary nation-community. The essay points out in which way the institutions and the type of accommodation influence the creation of 'Czechoslovak community' consciousness. The author concentrates on the influence of concrete institutions (accommodation and work agencies, job agencies, websites) because of which the ethnic schemes 'I am Slovak', 'I am Czech' are mobilized only seldom within the concrete environment. For entering into friendly and partner relations, the factors resulting from practical life in a metropolis are more important than the nationality.