3. Show compassion: Your GPA is stellar and you've amassed an impressive amount of medical work experience in the little spare time you have while keeping your grades pristine, but you still get that dreaded rejection letter. Why? You didn't do enough volunteer work. Volunteering exemplifies your desire to help your fellow man—the attribute identified by schools as one of the most integral to becoming a successful PA. "Students who have had experience in working with underserved populations, rural or diverse populations, performing volunteer service or disaster relief, or other experiences that illustrate a drive and compassion for others often stand out to the admissions committee," says Wiemiller.