We were brainstorming on ideas for how we can activate our first community for our product Roomvine (www.roomvine.com). By "activate" I mean getting people within a 200M radius to download the app, check-in to a local chatroom and having their first interesting group conversation. Since we need a geographically dense user group, we are naturally leaning towards a campaign for university students or attendees of an event.
Any wild/interesting ideas?