Authors - Apolinar P. Datu, Jeferson C Mojica, Pamela Daphne R. Busog, Kelvin M. Custodio, Desiree Anne D. Mendoza, Kristel Shane C. Paminter, Rose Ann T. Genova, Keno A. Villavicencio Abstract - This study explores how on-the-job training (OJT) helps student interns improve their ability to work with others. It focuses on how real workplace exposure strengthens teamwork, communication, and adaptability. Data were collected from 150 interns from different academic programs using a survey that examined their experiences during training. The findings show that most interns felt a noticeable improvement in their collaborative skills. Many were actively involved in meetings, team activities, and workplace discussions, which gave them valuable opportunities to interact and contribute. These experiences not only helped them communicate more confidently but also made them more comfortable working as part of a team. The results also indicate that supportive work environments—those that encourage communication and teamwork—play an important role in helping interns grow. In addition, OJT helped boost their confidence, sense of responsibility, and readiness for future employment. Overall, the study highlights the importance of OJT as a bridge between academic learning and real-world practice. It reinforces the idea that hands-on experience is essential in preparing students for a workplace that values collaboration and adaptability.