Set up an event webpage: At the very least, advertise your event on Eventbrite. Or better still create a one-pager to promote the event and allow people to sign up for exclusive deals. You can even add a countdown page to build excitement. Or you could write a blog article about the event and have the post give useful information about what else there is to do in the area. That kind of value adding is appreciated by both real people and Google bots alike.

Get physical: When pulling the local punters is the priority, nothing is quite as effective as handing out flyers or vouchers in the local area. Be sure to include a little map. Combine this with some simple way finding signs and posters to direct people to your door. Or, checkout (because, who needs doors?). Why not ramp up the attention by having someone meander and mingle wearing a branded backpack flag. Instant talking point.