“…are deployed to trigger rapport. In foreign language learning, the difficulty for learners to realize expressives appropriately in the target language has been broadly studied, for instance, with reference to Complain (e.g., Gallaher, 2014; Yuan & Zhang, 2018), Apologize (e.g., Barron, 2019; Liu & Ren, 2016), and Thank (e.g., Ren & Liu, 2021; Zhang, 2015).…”