Purpose: The purpose of this paper is to prove the importance of understanding body language to achieve the effectiveness of English language classes.
 Methodology: Literature investigation is carried out to confirm the objective of this paper.
 Results: In the teaching and learning process, effective communication between a teacher and students is the utmost importance. The failure to establish effective communication in the classroom setting will result in a deficiency of the teaching and learning process.
 Implications: It is the fact that many cues of body language are culture-specific and therefore the only way to improve the understanding of body language is by interacting with people from different cultural backgrounds so that they can share socio-cultural and linguistic norms. Thus, the experience will enrich the teacher with cross-cultural nonverbal behavior which benefits his performance in the classroom. Both teachers' and students' knowledge of non-verbal language play very significant roles in making the classroom interaction successful. Therefore, finally, a summary is presented to reconfirm the importance of integrating body language into classroom interaction.