There are also common customs and history, particularly in adjacent territories, primarily in shared borders, where livestock is the main source of income, where the word gaucho speaks of the rural inhabitants doomed to the tasks of farming, where the mate and the bulb can have a nomination dissimilar but the spirit of the infusion is similar and where they also shared a similar diet. It would be pretentious to address the heterogeneous cultural issues of these two countries, and extremely obtuse not to recognize the simplification on which efforts should be made to arrive at a conclusion is not sterile. It is necessary to restrict the contextual framework analytical capital's population of Sao Paulo and Buenos Aires, reduction is justified by the fact that I have experienced integration that has occurred mostly among persons living in these two cosmopolitan cities and therefore add to study other communities, would even more complex exploration. 4 HERMANOS LATINOS O first European to Brazil and Argentina have the same Latin root as is reflected in the many similarities of language. However, Excel also differences of expression, locution and even meaning. The ability to learn a language that is very familiar becomes sometimes an obstacle when the syntax is similar but the semantics is inconsistent. Here come the first problems of communication, fast and spontaneous conversations that end up confusing and requires partners, often as a courtesy, to embed comments came barely to interpret. In the words of Elizabeth Moscoso Klappstein: Argentina, Paraguay, Venezuela and Uruguay have, in some respects, more similar since they formed part of the Spanish Empire and have in common customs and language, in contrast, moved to Brazil Portuguese administrative organizations, political and legal, he printed his particular bias, in addition to language differences and customs "Likewise, membership in a crowded and cosmopolitan city deeply, in my view, certain features common in people of both countries, opening for the cultural exchange assessing the speed and immediacy of things, finding the money and power, exaltation of the culture of doing and underestimation of contemplation and reflection, among other particulars.