Select again the
Ellipse Tool (U) and continue drawing the emoticon’s eye. The layer is of white color this time.
The layer’s parameters:
Blending Options>Inner Glow
Select the previous instrument to draw the next layer belonging to the eye. The layer has this color -
#DCDCDC 
Applying the
Ellipse Tool (U), it’s possible to draw the pupil of the eye of black color.
Getting the final result is possible when combining those three layers of the left eye in a single group (press
CTRL button for marking out the appropriate buttons and then hold on the left mouse’s button to take the marked layers on
Create a new group option). Make a copy of this new made group and choose
Free Transform option for situating the copy on our emoticon’s right side.
Pass to represent the left nose’s nostril, applying the same
Ellipse Tool (U).
The layer’s parameters:
Blending Options>Gradient Overlay 
Gradient’s parameters: 
