Meetings and conferences facilitate the exchange of information, viewpoints, and ideas. They help remove misconceptions, finalize plans and strategies, and clarify concepts. Meetings are the most popular method of interactive communication as they allow for direct, face-to-face discussion. Proper preparation is important and includes determining location, agenda, attendees, and any necessary paperwork or visual aids. Meetings require punctuality, active contribution and listening from participants. Conferences involve larger groups of 50 or more people assembling to discuss common problems or activities and may include participants from different organizations.