SUMMARY
The purposes of this research were two-fold: first, to see whether or not lecturers’ immediacy behaviors were linearly related to their students’ Willingness to Communicate (WTC); second, to determine which immediacy behavior (Verbal or Nonverbal) predominantly impacted on students’ WTC. To achieve the purposes, two types of questionnaires were utilized, 1) students’ WTC and 2) lecturers’ immediacy. Later, the participants were asked to choose 1–5 scales of question item. There were 122 EFL public university students from the Western part of Indonesia who partook in this study. They were involved voluntarily and chosen randomly. For data analysis, the bivariate calculation was applied to find the associations between the variables tested. Thus, SPSS 26 was utilized to meet the statistical analysis required. The result showed that the lecturers’ immediacy behavior was positively and strongly correlated to the students’ WTC with a correlation value of 0.716. However, if compared to nonverbal, lecturers’ verbal traits had given the strongest positive association. It was described by Pearson correlation value found, 0.689 (verbal) and 0.502 (nonverbal). With regard to the study’s findings, educators of all levels must be aware of their immediacy behaviors so that students’ WTC can be controlled in a positive way.