One idea that might encourage additional participation is to configure the seating arrangement so that it is less formal, and participants can see each other easily.

• 为了促进更多的人参与到讨论中来，我有个小小的建议，建议以后安排会议室时更随意一点，使所有的发言者都能看见大家，这次这样正式的会场让发言者有很大的压力。