"Never skip this step; no matter how tedious you may find it, your whole portrait hinges on this one step."
Oh... how very dramatic, Lou Pemberton.
Here are the instructions Lou gives us for positioning.
I remember doing this type of thing at school, and I remember thinking at the time that this was cheating. I also don't think that I found it particularly helpful for me.
So now I must sweep away all those old negative feelings and come at this exercise with an open mind!
I have now done what I assume must be the worst bit - drawing the grid...
And, interestingly it looks like my picture of Rob was designed perfectly for this purpose - the grid fits perfectly on the tip of his nose and through his pupils!