This study tries to find out the effects of university instructors' nonverbal immediacy skills on the student perception of cognitive learning by using the "Nonverbal Immediacy Scale for Observers" (NIS-O) developed by Richmond, McCroskey and Johnson in 2003. The present study is the first use of 26-item NIS-O instrument in cross-cultural literature examining the relationship of "instructors' nonverbal immediacy behaviors" and "student perception of cognitive learning", which makes its findings rather important for the cross-cultural nonverbal immediacy literature. The survey was conducted with the participation of fourth year undergraduate business administration students from Turkey, USA, and China. Findings of the study showed that outstanding instructors in classroom teaching are rather competent in nonverbal immediacy skills. While American and Turkish instructors appeared to be immediate at the same level, Chinese instructors exhibited relatively low scores on immediacy scale. Findings also showed a statistically significant and positive correlation between instructors' nonverbal immediacy behaviors and perceived cognitive learning level of students in Turkey and USA.