Single lashes are good if you want natural looking long lashes, hand picked and groomed : perfectly placed around your eyes.
But where?
Courtesy of Make Up Store
But where?
Courtesy of Make Up Store

Place a 1 or 2 longer ones at the end. Build slowly.

Use a liquid eyeliner to thicken the line you drew just now in an almond shape, extending out from the corner of your eye.
Don't know how to apply single eyelashes?
Where do i place my single lashes makeup cosmetics tutorial