This document discusses Raya, a 5-year-old girl learning two languages from her parents and teacher in Salatiga, Indonesia. Raya's first languages are Bahasa Indonesia and Javanese, as her parents use both at home. Her parents take an interactionist approach to language development, ensuring clear communication. Raya attends kindergarten where her teacher also uses an interactionist model, engaging Raya actively in the classroom using Bahasa Indonesia and sometimes Javanese. Both her parents and teacher recognize the importance of social interaction in facilitating Raya's language acquisition at an early age.