coloring lips with photoshop

this is one of my cool trick on photoshop tutorial, coloring lips with simple steps, but i think it's will better to understand about "make selection using pen tool" before you do this trick, if you already see it, lets start dude...
1. take your object
2. then make selection on the lips using pen tool
3. make selection and 1 px for feather
4. change the color using "hue/saturation" by pressing Ctrl+ U
5. finish!!simple, isn't it??