Advantages:
You get in free. You get big discounts on the products.
You get to hang around knowledgeable exciting and interesting people.
What can you learn from spending one-on-one time with them?

Risks and expenses:
None. the speaker pays for his own transportation and expenses.

Job duties:
Collect the fax numbers and email addresses of the local media. Newspapers, radio and TV stations. Who’s in charge there of news stories?

The seminar leader will write and sent out the faxes and emails for you.

Where is there a bunch of possible interested attendees? You look for good sponsors: churches, clubs, organizations, library manager. Collect names, addresses, emails and fax numbers.

Where would be a good location to hold the seminars? A popular convenient hotel? A church hall?

You would pick up the speaker at the airport and take him to his accommodations; a hotel or private home. You are welcome to show him the sights of your city.

On the day of the seminar you would help set up the room, greet the incoming attendees, collect the money and organize their names and addresses, help sell books and products and clean up the meeting room.

On return visits your work has mostly been already be done. Real easy.