Came across this idea of his whilst thumbing through 'The Kid Stays In The Picture'.  An example used: if a tie he was wearing received too much praise, it had to go and be replaced by another - one that would draw the viewer to his face instead.  This put me in mind of the colour scheme/artistic perspective rules Paddy Nahman offered me last springtime.  The tie - or, perhaps, knitwear - serves only to lead the viewer's eye to the face.  Only certain muted colours seem to achieve this desired effect.