"미소" (miso) is the Korean word for "smile." It refers to the facial expression that typically involves the upward curving of the lips, often indicating happiness or friendliness. Smiling is a universal gesture that can convey warmth and approachability, making it an important aspect of social interactions. In Korean culture, a smile can also reflect politeness and respect. People often smile during conversations to create a positive atmosphere. Additionally, smiling is associated with various social customs, such as greeting others or expressing gratitude, highlighting its significance in everyday life in South Korea.