A user device for correcting an eye gaze of a user comprising: an input configured to receive from a camera video of the user's face; characterized in that the user device comprises: a facial tracking module configured, in an active tracking mode, to track at least one angular coordinate (P, R, Y) defining an orientation of the user's face and to output a current value of the at least one angular coordinate that is within a range of possible values; an eye gaze correction module configured to modify frames of the video to correct the eye gaze of the user, whereby the user is perceived to be looking directly at the camera in the modified frames (F'), only when the facial tracking module is in the active tracking mode, and only when the current value of the at least one angular coordinate of the user's face is within a restricted subrange (Δ) of the range of possible values for which the user's face is oriented towards the camera; and a limit setting module configured to vary the restricted subrange for the at least one angular coordinate, wherein: i) the facial tracking module is configured to track at least one spatial coordinate of the user's face, and wherein the restricted subrange is varied based on the tracking of the at least one spatial coordinate, or ii) the user device comprises a display, and wherein the restricted subrange is varied based on display data indicating a current state of the display an input configured to receive from a camera video of the user's face; characterized in that the user device comprises: a facial tracking module configured, in an active tracking mode, to track at least one angular coordinate (P, R, Y) defining an orientation of the user's face and to output a current value of the at least one angular coordinate that is within a range of possible values; an eye gaze correction module configured to modify frames of the video to correct the eye gaze of the user, whereby the user is perceived to be looking directly at the camera in the modified frames (F'), only when the facial tracking module is in the active tracking mode, and only when the current value of the at least one angular coordinate of the user's face is within a restricted subrange (Δ) of the range of possible values for which the user's face is oriented towards the camera; and a limit setting module configured to vary the restricted subrange for the at least one angular coordinate, wherein: i) the facial tracking module is configured to track at least one spatial coordinate of the user's face, and wherein the restricted subrange is varied based on the tracking of the at least one spatial coordinate, or ii) the user device comprises a display, and wherein the restricted subrange is varied based on display data indicating a current state of the display a facial tracking module configured, in an active tracking mode, to track at least one angular coordinate (P, R, Y) defining an orientation of the user's face and to output a current value of the at least one angular coordinate that is within a range of possible values; an eye gaze correction module configured to modify frames of the video to correct the eye gaze of the user, whereby the user is perceived to be looking directly at the camera in the modified frames (F'), only when the facial tracking module is in the active tracking mode, and only when the current value of the at least one angular coordinate of the user's face is within a restricted subrange (Δ) of the range of possible values for which the user's face is oriented towards the camera; and a limit setting module configured to vary the restricted subrange for the at least one angular coordinate, wherein: i) the facial tracking module is configured to track at least one spatial coordinate of the user's face, and wherein the restricted subrange is varied based on the tracking of the at least one spatial coordinate, or ii) the user device comprises a display, and wherein the restricted subrange is varied based on display data indicating a current state of the display i) the facial tracking module is configured to track at least one spatial coordinate of the user's face, and wherein the restricted subrange is varied based on the tracking of the at least one spatial coordinate, or ii) the user device comprises a display, and wherein the restricted subrange is varied based on display data indicating a current state of the display