When answering this question, you can talk about the role of smiling in social interactions in your culture. For example, you can mention that smiling is often seen as a sign of friendliness, politeness, and approachability. It helps people build good relationships and create a positive atmosphere. You can also discuss whether people in your culture smile a lot in public or if smiling is reserved for certain situations. Giving examples from daily life, such as greeting friends or meeting new people, can make your answer more vivid.