The adolescence represents one of the most complex and unpredictable periods of human life. A teenager could be considered mature from physical, intellectual or moral point of view, but not from emotional one, because he is like a "sponge" able to absorb a lot of information, care and love. On the other hand, moral behaviour could be associated with social competence to establish a good relationship with others, to help them, to cooperate in a team and to have a positive attitude regarding general society. In the following paper, we will try to analyse the moral attitude of 182 Romanian teenagers and 210 Flemish ones regarding to different life situations. Our conclusions are that in spite of all intercultural differences, the majority of interviewed teenagers have an honest conduct and a respect for law and moral values.