I think it's simpler than that: people get better at things with practice.
Werewolf isn't like poker where people typically try to conceal their emotions and leak nothing; instead you're trying to act like you're on the Villager team regardless of whether you actually are.
Werewolf isn't like poker where people typically try to conceal their emotions and leak nothing; instead you're trying to act like you're on the Villager team regardless of whether you actually are.