Hala Ajam’s talks about the liquid Eyeliner
the liquid eyeliner creates a bolder effect, as the color is the richer and the line is more precise. when applying liquid liner, it is best done as close as possible to the mirror, as control is essential in application. Haul the eyelid taut and outwards, and draw a line close to your lash line. If you wish to go thicker, simply repeat the same movement above the original line and so forth.
Another trick to start with a thin line and get thicker as you go across then thinner to the outer corner and then upwards a bit, creating a feline appearance to the eye. The effect can be dramatic and will create a whole new shape to the eye. It can give you a retro look.
If you want the eye to look raised and more open, draw a thin line across the upper lid, stopping just before the lash line ends. Then take the line upwards into a gentle curve. If you want your eyes to appear larger, simply follow the shape of your eye, and then continue with a small line just beyond the lashes.