A conscious effort to engage the STARS (who generally keeps mum during meetings) actively is a must, my experience is that such people have great ideas , they are shut just because they are not getting chance from the so called Suns and Moons. Ask them - " Mr X , What do you think about this proposal ? What would you suggest ? ". After all , you will loose a person from the discussion if you failed to create interest in the audience , Its all your choice , always keep some magical words floating all around. I have seen people saying after meetings - Oh he doesn't take interest in the meetings, he is generally slept in meetings, he doesn't participate in meetings. I would say, instead of talking in absence, they could have encouraged the person to come up with their thoughts in the meeting it self. So whenever you are hosting a meeting, keep the SUN,MOON and STARS theory in mind.
Take a look at this you tube video that tells 6 secrets of organizing effective meetings.