I bought an eyeliner from Clinique several days ago and found it extremely useful. The one I bought is in smoky-brown because I want to avoid looking too sharp if I use a black one. Moreover, if you want to create a smoky eye by this pen, you can use the rubber at the end of the pen to rub your eyeline after you have drawn it.
In addition, if you do not want to look like having put on a serious makeup when you go to school or work, you can try to draw the eyeline not above your eyelashes but below them. If you pull up your eyelid slightly, you can see a white line between your eyeball and your eyelashes. Just draw a line on the white line. Your eye will secrety become bigger but looks natural.
Quickliner for Eyes ($14.50) from Clinique