This exploratory study investigates the development of personality dimensions related to multicultural effectiveness and its relation to amount of target language use and self-perceived progress in speaking during a sojourn abroad in seven European countries. The participants were 59 Swedish and Belgian university students. The Multicultural Personality Questionnaire – Short Form ( van der Zee, Van Oudenhoven, Ponterotto, & Fietzer, 2013 ) was administered at the beginning and the end of the semester, and data on self-reported weekly hours of target language use and self-perceived linguistic progress were gathered at Time 2. The main findings are the observed moderate or near moderate correlations between self-perceived progress in speaking and change in Cultural Empathy, and between amount of target language use and change in Cultural Empathy and Openmindedness. This points to the relevance of further studies on the role of target language use and progress in the development of personality characteristics.