Face tracking is a technology that detects and follows human faces in real-time using cameras and software. It analyzes facial features and movements, allowing devices to recognize and respond to individuals. This technology is commonly used in applications like video conferencing, augmented reality, and security systems. The process involves algorithms that identify key points on a face, such as the eyes, nose, and mouth. By continuously monitoring these points, face tracking can maintain focus on a person's face even as they move. This capability enhances user experience in various fields, including virtual reality and social media.