Thank the volunteers
The next time you go to a PFS event, whether on-line or in person, notice the people who are selling tickets, keeping things organized, introducing musicians, keeping lists up to date - all the stuff that makes it possible to have successful events. And, think about all the work that has already been done, in getting venues, musicians, publicity, insurance and so on. And then, find a volunteer, and go up and introduce yourself and thank them for what they are doing.
They will definitely appreciate it.
And, of course, if you are curious, and if they have time to chat, you can ask them about why THEY volunteer and what they get out of it!