Creating the illusion of human eye contact is a complex aspect of making sex dolls feel more alive. Advanced dolls are equipped with movable eyes that can be positioned to simulate gaze, giving the impression of eye contact during interaction. Some models incorporate internal mechanisms or servo motors that allow the eyes to follow movements or respond to external stimuli, such as touch or spoken commands. The positioning of the eyelids and the ability to open or close the eyes contribute to realistic expressions and engagement. Manufacturers also pay attention to eye color, size, and iris detailing to enhance authenticity. While full eye-tracking technology similar to humans is still a developing field, current systems focus on creating the appearance of direct gaze, which significantly impacts the psychological sensation of connection. When combined with facial expressions and responsive head movement, these features help foster a sense of realism and emotional engagement, making interactions with the doll more convincing and immersive.