Here are some tasks that a volunteer event assistant might be involved in:

1. Setting up event venues, including arranging chairs, tables, and decorations.
2. Assisting with registration and check-in processes for attendees.
3. Providing information and guidance to guests throughout the event.
4. Helping to coordinate volunteers and delegate tasks as needed.
5. Assisting with audiovisual equipment setup and troubleshooting.
6. Distributing promotional materials or merchandise to attendees.
7. Manning information booths or stations.
8. Assisting with catering coordination, such as serving food and beverages.
9. Collecting feedback from attendees and providing assistance with surveys.
10. Assisting with cleanup and teardown after the event.