Now lets create the basic mesh. If you like to model like this always keep in mind to try to use as less polys as possible.
In the right view I move all vertuces to the left side where I need those points on the front part of the head. The back side of a human head can be done with less then 8 polys. (I forgot before you start moving vertices, press F2 to center the object and activate symmetry mode)

After moving you will end up with something like this

I have selected the front polys and smooth shift them 1 time (you will receive some extra polys afterwards). I've also moved some of the vertices to create a head shape.

For the head detail I first start making the eyes. I will create the basic eye shapeout of these polys just by moving some of them into the right place.