Making a long face, also known as a frown, can express sadness, disappointment, or dissatisfaction. However, there are several antonyms for this expression as well. For example, making a smiley face expresses happiness, contentment, joy, or satisfaction. Smiling is a universal gesture that can instantly lift someone's mood and make them feel better. Similarly, making a pleasant face can also be an antonym of making a long face. A pleasant face may express warmth, friendliness, or kindness, and is generally a more positive expression than a frown. Other antonyms for making a long face can include laughing, beaming, grinning, or smirking. All these expressions can help you show your emotions and feelings positively.