Understanding the process by which students naturally construct and internalize their educational experiences relating to career development is important to career counseling. The author investigated how exploratory behaviors during a community-based field experience course contributed to the vocational development of 1st-year medical students. Behavioral exploration data regarding medical career development and specialty decision making were collected from 91 first-year medical students before and after they engaged in an exploratory behavioral activity, the Ambulatory Care Experience course. Findings suggest that students had not progressed in their medical career development and that more uncertainty existed among students after completing the course.