Curly Blonde Girl With A Smile Strips Her Dress Outdoors On A Street Stairs

In social contexts, smiling is related to laughter. In this situation, two kinds of smiling are analyzed:
- Smiling is a pre-laughing device and is a common pattern for paving the way to laughter;
- Smiling can be used as a response to laughter in the previous turn. Smiling and laughter have different functions in the order of sequence in social situations.