You’ll remind those that have chosen to sign up for your Meet-up of any pertinent details leading up to the Meet-up. (waivers?, costs, where you’ll meet, etc.)
You can use the email follow-up template included in your Host Kit to thank people for participating, collect any photos and video, and hear about their experience. From there, you can invite them to future Meet-ups, invite them to be a part of your group (if you’re a part of one), and encourage them to connect with you on Sunday at Open Life.
That’s the A to Z (actually, A to D) of hosting a Meet-up. For more info, check out the Meet-ups FAQs. If you have additional questions, fill out this form.