Observation: Boy Eating Crisp

I did this sketch the other morning , sitting in the l'Hirondelle Café on Hoe St. Being the summer holidays the place was jammed to the rafters with mums, buggies, pushchairs, babies and kids.
One small boy was eating a packet of crisps, and, rather than wolfing them down as you might expect, he was placing each one far back into his mouth with an almost liturgical solemnity, as if carefully placing them on a shelf at the back of his head, and almost dislocating his jawbone, snake-style, to get the snack passed his teeth without breaking it. Very funny to behold and done completely unselfconsciously.

( I am here continuing my exploration of the simplest use of colour and line - I have, in the past, had a tendency to "over-egg"!)