RESUMO
This qualitative study examines how five secondary school TESOL teachers in Thailand use TikTok to express their emotions and shape their professional identities. The research uses semi-structured interviews and thematic analysis to explore the platform's role as an emotional outlet and a medium for enhancing teacher-student relationships. Findings indicate that TikTok helps teachers manage work-related stress and allows them to present authentic selves, facilitating deeper connections with students. This interaction further informs their pedagogical practices and supports their professional identity development. The study suggests that TikTok's ability to bridge emotional expression with professional engagement offers valuable insights for integrating social media into educational frameworks. Recommendations are provided for leveraging these platforms to enhance teachers' well-being and instructional strategies, highlighting the need for further research with a broader sample. This study demonstrates the potential of social media to impact teaching dynamics and professional growth.