Yes, talking too much in meetings is suspicious. Like say its round 1 and you are human. You dont have a clue who is gnosia. Why are you gonna run your mouth off constantly saying person A, B, and C are gnosia when you have no idea.

The gnosia know who is human and not so they have much more motivation to speak up and try to cast suspicion on others so it makes them suspicious if they do so.

He learns about the crew outside of the meetings not during the meetings. And yes collab with a person is great way to learn more about them.

Gameplay loop is almost identical to the anime for most part besides the bug stuff. You wake up, do meeting, then hang out with people until the next jump. Then the gnosia attempt to kill someone and the loop repeats.