You access the Find Participants function by clicking CiviEvent on the CiviCRM home page. There are four items underneath the CiviEvent menu item - Find Participants, Manage Events, New Event and Import Participants (Click on the links for information on those functions).
Click on Find Participants to go to the Find Participants screen. You will see the Find Participants search form.
Use this form to find event participant(s) by: Participant name or email, Event Name, Event Type, Event Dates, Status or Participant Role. You can also search for Test Participants.
Enter the information you want to include in your search and click Search.
Your results will be displayed below the search form.