Tips on being a better communicator:
Use the Right Method of Communication
Should what you have to say be delivered in person or through a letter, memo or email?

It is best to communicate in-person when you are trying to persuade, when you want an immediate indication of response, when you are praising performance or when dealing with a matter of discipline. 

It is best to communicate in writing when you have a complicated matter to present, when the audience will need time for evaluation, when you are setting policy, or when an in-person meeting is impossible.