Consumer engagement is a multidisciplinary academic concept investigating the dynamic interactions between consumers and brands, products, or services. It examines the cognitive, emotional, and behavioral dimensions of these interactions across the customer journey, often facilitated by digital technologies and personalized experiences. Key characteristics include reciprocity, value co-creation, and observable behaviors such as loyalty, participation, and advocacy. The concept is significant for understanding consumer behavior, predicting outcomes like retention and advocacy, and informing strategic marketing and customer relationship management.