From time to time during your clinical rotation, you may participate in case presentations.
Sometimes you will be the presenter. Other times you will be a listener. Your participation is not graded. This is an educational experience for you.
If you are presenting, pick a case you have recently encountered that you found interesting. Simpler cases usually work out better considering the time constraints (usually 20 minutes, including followup questions).
Your audience may be fellow PA students, MS3 students, MS4 students, residents, fellows and attending faculty. Be prepared for all levels of questions.