Well, when I was an MS, I was the Sound Servant.
That means:
1.) I made a schedule each month determining in advance who would run each microphone and the sound console.
2.) Get to the KH 20 minutes early and setup the mics and sound for the meeting that night.
3.) Run around and try to find people to handle the mic assignments. It was difficult. It seemed like some did not want to be involved...I tried to be gentle.
4.) Handle any sound issues during the meeting...high pitches, low sound, too loud, etc. The elder who had the job before me was very picky about the sound and would constantly be tweaking the knobs.
5.) O yeah, I was also an attendant, which meant I was standing at the back for most of the meeting taking count and handling any disturbances in addition to walking the parking lot twice a meeting for safety.
Hey, it gave me something to do. I got a little concerned toward the end how easy some brothers would get upset over silly things like handling mics. I hated, and refused, to counsel brothers about service time and appearance.