BODY LANGUAGE IS IMPORTANT FOR YOU!
It is imperative for you to self examine whether your body is saying what you want it to. Or can you rather observe other people's body language? It's about time you pay attention to body language of people you admire- people who are liked and respected hugely by others.
These are the important aspects you should observe with regard to their body language:
a) Watch their posture when seated and standing
b) Watch their facial expresssions
c) Do they have eye contact, what kind? 
d) Do they do anything that contradicts their positive body language? For example their tone of voice when speaking or even laughing, courtsey etc.GETTING THAT INFORMATION FROM UNUSUAL SOURCES!
Set up a climate of mutual trust and cooperation
Show you are listening by potraying right body language.
DID YOU KNOW THAT YOU CAN CHANGE HOW YOU FEEL JUST BY MERELY ADJUSTING YOUR BODY LANGUAGE??
Ask any English professor or business communicator, and you