Applicants use résumés to demonstrate their knowledge, skills, abilities, and other personal characteristics to recruiters (KSAOs), through education and job-related or non-job-related experiences. But research suggests that the situation for young applicants is especially competitive, since they increasingly enter the labor market with similar educational credentials and limited job-related experience. They may thus use non-job-related experiences, like participation in extracurricular activities (ECAs) during their studies, to demonstrate KSAOs to recruiters, but also to add distinction and value to their credentials. ECAs may therefore become more important in the selection of young applicants. Yet, few studies have undertaken a comprehensive and systematic analysis of the relationships students have with these activities. The purpose of this study was to investigate to what extent students' involvement in ECAs is due to internal (e.g., passion) or external (e.g., résumé-building) motives, and what factors influence these motives. Results from a study with 197students suggest that students engage in ECAs mainly out of internal motives. But external motives are stronger for activities started closer to entering the labor market, for students active in associative or volunteering activities (as compared to sports or artistic activities), and for students holding leadership positions in their activities. Our results suggest that labor market pressure may be a key component of applicants' involvement in ECAs. Also, organizations and recruiters may want to consider that students tend not only to engage in ECAs purely out of internal motives, but also to add value to their credentials and match employers' expectations.