Making the best of the end of rationing.
These are boys. Notice the devil-may-care way he wears his cap. The cap was not just to keep the head warm, but to carry useful and secret stuff. If you could see in the pocket of the other lad you would find a treasure trove of stuff, including. Six marbles, a conker, a length of string, a pen knife, some fag cards (cricketers in the summer, footballers in the winter), some elastic bands, a clothes peg and an empty match box (for making a match gun) and two aniseed balls (one half sucked). Above all notice their overall demeanor. Quite possibly they have been out hunting for lemonade bottles to get the 3d (three pence) deposit back to buy their sweets. This shows enterprise.
Training for the future.
These are girls, they are clean!!