Expressions of joy are the ways in which people show their happiness and excitement. These can include smiling, laughing, and jumping for joy. Celebrations, such as birthdays or holidays like Christmas, often bring out these expressions, as people gather with friends and family to share in the happiness. Different cultures have unique ways of expressing joy. For example, in India, festivals like Diwali feature vibrant celebrations filled with music, dance, and fireworks. Similarly, in Brazil, the Carnival showcases lively parades and samba dancing, allowing people to express their joy through colorful and energetic festivities.