The phrase "causes a scene" means to create a disturbance or draw attention to oneself in a negative or disruptive manner. Antonyms for this phrase would include behaviors that are calm, quiet, and unobtrusive. These could include actions such as acting politely, remaining composed, or diffusing a tense situation. Instead of causing a scene, one could choose to defuse a situation, diffuse an argument, or quietly de-escalate a conflict. Using these antonyms can help create a more peaceful and harmonious environment, and avoid drawing negative attention or disrupting others around us.