Everyone is talking about increasing attendee participation and interactivity, but there are no real guidelines to make it happen. From registration to the last function of your meeting, it is important for attendees to always feel welcome. Some experienced meeting planners recently weighed in on this topic on a LinkedIn PCMA Group Discussion. Below, is a synopsis of their thoughts, along with a few of my own.REGISTRATION AREACreate an environment that "invites people in." Is your area...