Here are some lining techniques as requested by I’ve Been Sungified.
*Top lash line: Tilt your head up slightly, pull your skin taut, look down into a mirror and start from the inner corner working your way towards the outer corner. A pointy but soft brush like Sephora’s Long Handle Sable Eyeliner Brush (US$8) as shown below would work.
Sephora Long Handle Sable Eyeliner Brush
*Bottom lash line: Pull the skin under your eye down a little, look up into a mirror and start from the outer corner lining inwards. I recommend using a push brush like MAC #212 Flat Definer ($20) or an angled brush like MAC #263 Small Angle Brush ($16.50).
MAC #263 Small Angle Brush
MAC #212 Flat Definer