Greetings are essential forms of communication that help establish connections between individuals. They can vary widely across cultures, with different phrases and gestures used to convey warmth and friendliness. Common examples include a simple 'hello' or a handshake, which serve to acknowledge someone's presence and initiate conversation. In many cultures, greetings are not just a formality but also a reflection of social norms and etiquette. For instance, in Japan, bowing is a traditional greeting that signifies respect. Understanding the appropriate greeting for a given context can enhance interpersonal relationships and foster a sense of community.