This chapter examines factors impacting L2 WTC among Chinese ELLs studying in an EAP program in Australia. Adopting both quantitative and qualitative methods, three questionnaires were used to measure L2 WTC, English learning motivation, and self-rated English proficiency; and semi-structured interviews were used to triangulate and complement questionnaire data. The main results were (1) L2 WTC with friends was higher than L2 WTC with acquaintance and with strangers and (2) L2 WTC with strangers and acquaintances were positively related to integrativeness and attitude toward the learning situation, but not with motivation intensity. L2 WTC with friends did not correlate with any of the scales in the English learning motivation; thus, (3) L2 WTC with strangers and acquaintances but not with friends had positive association with self-rated English proficiency, and (4) factors such as teaching methods, teachers' attitude, learning style, and personality all impacted on L2 WTC. The results are discussed and practical implications are articulated.