Consumer behaviour is the study of how individuals, groups, and organizations select, buy, use, and dispose of goods and services. It examines qualities like demographics and lifestyle, as well as influences from social groups, friends, and society. Understanding consumer behaviour is important for businesses because it affects factors like buying decisions, loyalty, recommendations, and advocacy. Consumer perception, or a customer's impression of a company, also plays a key role in areas such as communications, advertising, and brand understanding.