There are myriad social-media sites, but when it comes to at-show engagement, Twitter takes the cake. The platform's bite-sized posts and back-and-forth banter make it the perfect tool for getting attendees to visit your exhibit – and for marketers to interact with prospects who aren't at the show. But Twitter's 140-character cap and unique vernacular can make it a tricky marketing medium. So EXHIBITOR enlisted social-media experts to share some dos and don'ts to help you maximize the effectiveness of this popular microblogging platform. By Claire Walling