You’ve got the eyes and ears now, use them. Add attendees to a newsletter distribution. Invite them to a coalition meeting. Make an ask of a local official while its fresh in their minds and the minds of their constituents. Be active on your social channels to stay top-of-mind. Host an educational assembly at a school. Make an ask! If there is something your coalition needs or a goal they are trying to hit use the event as a sign of success to entice more engagement and get people even more excited about what you can do for the community and the important work you are doing.