How to get people to join an event

Here is my format:
Promo image of something related to your airport
VAs/VOs sponsoring
Any previous topics related to the event
Basic event info
Airport info (I do this via links, make sure to give credit if you do so)
Terminal map
Flight tracker websites for additional routes
Also, host your event at least 2 weeks in advance.
Post a poll with things like airports, dates, and times to see how people want the event to be.
Add some unique things in your event to get people to join.
For more info about my format, see my KDCA Flyout.