Answer: DISPLAY RULES
Explanation: Display rules may be defined simply as a cultural standard or doctrine which is often adopted by individuals of a group .This cultural standard is adopted in the conveyance of emotions or feeling about a certain action or observed behavior without the need to make verbal utterances. In the scenario above, The display RULES exhibited by students in the United States and Europe is different, while European students often applaud after receiving a lecture, United States students rarely do so . This highlights that cultural differences may affect the interpretation of non verbal communication.