Recognizing a pattern. Talk with each other.
Trial and error. Observing what is printed in magazines and books.
Incorporate places people and activities naturally.
shoot tight. keep empty space to a minimum.
not all shots need to be smiling.
using different angles. vertical/horizontal etc.
use different camera lenses, or shoot wide or telephoto.
ne away of light and how it affects the composition
rule of thirds.
take m0re than one shot. carry memory card and batteries.