Choose your reader
Before drafting, finish this sentence: I want this reader to understand or do ___. A message to a friend and a request to a manager need different details. For this course, imagine asking the person who runs a library, school, or workplace to make one practical improvement.
Put the action where readers can find it
Name who does what: 'The library closes at six.' A direct verb often makes an action easier to see than a phrase such as 'makes a decision about'. Active voice is useful when the actor matters; passive voice is useful when the action or affected person deserves attention.
Be precise without changing the meaning
Replace empty phrases with information the reader can use. 'Soon' may need a date; 'better facilities' may need an example. A shorter sentence is only an improvement if it keeps the necessary meaning. Do not invent details just to sound specific.
See it in practice
Starting point
I am writing this message in order to say that the room has some problems that need attention.
Using this skill
Please repair the two broken lights in the reading room before Friday's evening class.
The revision gives the reader an action, a location, and a deadline. These details are part of this imagined situation; in your own writing, use details you know.