Answer:
In person Messages (like when talking to someone)
-Look the person in the eyes when you are talking.
-If the person isn't paying attention wait for them to give you their full attention.
-Make sure you know what you are going to say before you start talking.
-Make sure you are prepared to answer any or all questions that come up after you are done with the message.
Online messages (Emails, Essays, Projects)
-Always, always check your grammar, spelling, and punctuation.
-Check that you are pronouncing things accurately.
-Check to make sure your work meets the requirements.
-If you have a sudden idea but aren't sure you will use it right away, write it down on a sticky note or somewhere safe you wont, loose or forget about it, just in case you may need it later.