Avoid inviting participants who will not benefit from or provide input to a meeting. Design the meeting logistics to align with the meeting type and process used. Seating arrangements vary with size of group and the technology used. Consider noise level, equipment needed, lighting, and ventilation. Observe the dynamics and high energy of any successful meetings you attend.
People appear to be having fun.
Note also that meeting skills are rooted in organizational issues unlike presentation skills which originate from personal goals. During the meeting Display the group thinking and meeting progress. Facilitate the meeting to accomplish the organizational objectives. Be cognizant of the organization's values, sensitivities and goals. Familiarize participants from other cultures with your processes and procedures.