Write one sentence for each part of a short action. Make sure the middle shows a change and the ending gives the viewer something to understand.
Try this
A character sees a kite, reaches for its string and holds it steady. Draw one pose for each sentence, then decide whether an extra transition would make the sequence clearer.
Take it further
Show the three drawings to another person in order and ask them to retell the action. If their account differs, decide whether the difference is interesting or whether a transition needs more detail.
