Brian Cutler addresses the habit of smiling out of discomfort, explaining that such expressions often mask an actor’s true feelings and convey unease. He emphasizes that learning to control these habits enables actors to use expressions like smiling only when it naturally aligns with the moment, rather than as a reflex to avoid discomfort. Cutler acknowledges that breaking these ingrained behaviors takes time and effort, but with perseverance and group support, actors can achieve more authentic, emotionally resonant performances.