There is a thing called perception clouding that has to deal with your aura and energy. The concept is to make yourself invisible to others' attention and stay on a low key while you are about your business.
You could use the opposite effect by making your aura noticeable by certain people. Also, how you carry your body is very important. If you are slouched, have a slow pace, and look down or into the distance too often, it sends the message to other people that you are not very sociable. However, if your shoulders and back are straight, you look forward or directly into the eye of another while talking, and have a brisk pace, it sends the message to people that you are confident of yourself. People like others who are confident.