Abstract

Public speaking anxiety is a common issue faced by employees across various sectors, including PT Telkomsel Area Papuaska. The ability to speak in public is crucial for effective communication, particularly in product presentations and work reports. Public speaking training, coupled with psychological interventions such as mindfulness and cognitive restructuring, was selected to address this anxiety. The method used was service learning, where public speaking theory was applied through simulations and performance evaluations. The results indicated significant improvements in confidence, speaking skills, and the ability to manage anxiety during presentations. The average post-test score increased from 71 to 85, indicating the effectiveness of the intervention. The significance of these results highlights that psychological interventions are effective in enhancing public speaking abilities and can be widely applied to improve productivity and communication effectiveness in the workplace.