Gatherings pull the old and the young in equal measure, and the age gap between them is the picture. The pensioner with the hobby of a lifetime; the child reaching for something older than their parents; the passing-down of an enthusiasm.

Where it works: a car show (a kid drawn to a classic), a steam fair, a village fete, a flower show — any event where a tradition is being handed on.

Best time: whenever families are moving through together.

Look for: the contrast in one frame — young hand and old object, or old face and young excitement. The story is the gap.