General Brazilian
postura de mente aberta / atitude receptiva
Most commonly used in formal and informal contexts
São Paulo
postura aberta / mentalidade receptiva
Frequently used in business and academic settings
Rio de Janeiro
atitude de mente aberta / postura receptiva
Common in educational and social discourse
Portugal
atitude receptiva / mentalidade aberta
Used in formal contexts; 'mentalidade aberta' is more commonly employed