Pin It Eyeliner to me is a two handed job. One holds the brush and the other pulls the skin taut. If you don't need to use two hands then you either have perky lids or your eyeliner droops towards the end.
In this post there really isn't much to explain in method when it comes to the various different formulas of eyeliner. I pretty much apply in the same way with all of them. I find blotting the excess product very important for a successful application.
First thing is to rest the pinky against the face so it holds the brush steady. I can usually start with one hand when it is the inner corner of the eye. However, if I want to apply the color deep into the inner corner, I will hold it taut towards my nose.
After the inner corner has been done, I draw a line until it reaches the bulge of my eye, there I pull the outer corner taut. The bulge is where the eyeliner begins to go all over the place since that is where the skin is most loose and accommodating for the eyeball to move. Once over the bulge, I pick up the brush and mark the end of my eyeliner which will be slightly winged. This is in line with my "crease".
Still holding the skin taut, from the opposite direction I just meet the line that I had drawn. Voila! That is just a simple winged liner, nothing too extreme.
There are more in depth tutorials on winged eyeliner and tightlining in my other blog, Into the Palette. Better explanations. ;-)