If you have went through all my post about communication, you might have got some idea about how to improve communication. Still i am going to explain some things but this wil in short not detailed as i already covered lots of topics.
To improve your communication you must understand communication. What is communication? Understand process of communication.
Make yourself confident and have courage or will power to do what you think and say. make practice so that you can loose fear and have better communication. don't interrupt other person while having conversation,let them complete conversation and start your. while talking to somebody it's good to have eye-contact, that gives lots of impression to other side person. use gestures, move your hand. be aware about your body language at the time of conversation, but by doing hand moments or eye movement don't give any wrong idea about anything.
while writing message don't right short word in business communication. that make message more complex and difficult to read, writing message in short would cost you lot. so good to have full words, simple sentences. if you are fearing about your message then good to have feedback from someone you trust.
while giving speech, a much very important is your attitude and voice to grab attention of listeners also, you should be well dressed, otherwise it will affect your impression and your speech wouldn't considered great cause you will not be able to grab attention of people sitting in font of you.
