Upper eyelash edge: pull the outer corner of the eye upwards a little, get the subject to close their eyes and use a brush to place the eyeliner against the upper eyelashes and apply it from the inner corner outwards. Do not start too close to the inner corner of the eye and stop at the outer corner of the eye. If you want to draw the eyeliner line further, do this while the eyes are open and do not pull the skin. Let the line run a little upwards from a quarter of the way from the end.
If necessary, thicken the drawn line to the desired shape.