This paper principally endeavors to grant a thorough understanding of the cognitive and expressive mechanisms perpetually involvedin the production of speech. It must be noted that oral fluency has proven to be one of the major skills that almost all EFL learners strive to achieve through conscious mental efforts and constant exposure. Oral fluency is then a cognitive process that requires the learner to use their meta-cognitive skills to both enhance the effectiveness and flow of speech, and simultaneously avoid speech errors