|Smiling is a powerful tool and can be used by an individual to influence one’s mood, attitude and health. There are also many social benefits that can help lead to harmonious interpersonal relationships. But is a smile always positive? A sarcastic smile is rarely connected with something pleasant. Through 5 types of smiles based on V&A Museum’s scenario, some genuine, some insincere, I presented a descriptive library of smiles. By using a mapping system I invited participants to join a contagious smiling chain to explore the various meanings of smiles in order to encourage deeper thought about human communication.