This book explores the relationship between immersion in a foreign language and its culture, and perception and expression of emotions in both the first and a foreign language. It looks at the perception and expression of emotions from different angles, including personality traits and emotional intelligence as important variables that might have an influence not only on one's ability to perceive and express emotions in a foreign language, but also on self-perceived L2 proficiency in that language. It is the first study, to the best of our knowledge, that investigates such notions as personality, sociocultural competence, and emotional intelligence, as well as perception and expression of emotions in the L1 (Polish) and L2 (English), in relation to the immigrant context by using both qualitative and quantitative research methods. The book will be of considerable interest to both students and scholars in the fields of second language acquisition, bilingualism, and applied linguistics.