Several studies have indicated that the range and linguistics expressions of external modifiers available in one language differ from those available in another language. The present study aims to investigate the cross-cultural differences and similarities with regards to the realization of request external modifications. To this end, 30 Iraqi and 30 Malay university students are selected as the participants of this study. Spencer-Oatey's (2008) rapport management theoretical framework is used to examine how face rapport is managed through the use of external modifications. The corpus consists of responses to a Discourse Completion Test (DCT) consisting of eight situations. The questionnaires, adopted from Rose (1994), were distributed among Iraqi students and Malaysian Malay students studying at Universiti Sains Malaysia, Malaysia. The corpus were then analyzed based on Blum-Kulka, House and Kasper (1989) classification of external modifiers. The primary objective of this paper is to compare the effect of situational factors on the realization patterns of request modification between Iraqi and Malay university students .The findings are hoped to have implications for comparative cross-cultural and intercultural communication studies.