Emotional regulation is one of the skills children develop in early childhood, and norms of social and emotional behaviour are explicitly taught and implicitly embedded in early childhood curricula. This chapter discusses emotion socialization processes in preschool settings. It outlines how various emotions (sadness, laughter, empathy, compassion and others) are displayed and interpreted in social interaction by using language and embodied resources. The chapter provides examples of how emotion socialization is configured by teachers and children in early childhood education in various countries worldwide.