Contrary to prevailing research on willingness to communicate (WTC) which treats spoken second language (L2) as the predominant indicator of WTC, this study examines a young English as a second language (ESL) learner's WTC expressed through multimodal means and her utilization of multimodal and multilingual resources for mediating WTC in translingual environments. Data were collected from videotaped ESL lessons and an interview. Adopting a multimodal conversation analysis (CA) approach, this cross-disciplinary study analyzes the ESL novice's WTC expressions in two communicative settings: small-group interactions in ESL class and a multilingual triad conversation in an interview. Findings reveal that (1) gestural WTC display can signify more than one's intention to enter discourse, (2) contrary to previous WTC studies, first language (L1) use can indicate L2 WTC, and (3) the learner used diverse semiotic resources to mediate WTC and sustain discursive engagement. Implications are discussed with respect to the findings. This study extends the understanding of WTC beyond spoken L2 expressions, emphasizing embodied display and L1 use in the learner's communicative repertoire. Additionally, it sheds light on the learner's strategic use of multimodal resources to sustain engagement in translingual environments, contributing to the broader field of language education and multimodal analysis.