Your body conveys a great deal of information. Watch that your body language is appropriate for any given situation. Are your arms crossed? Are eyes rolled? Are you leaning forward to listen? Eyebrows raised? All of these things are very evident communication (even if you think you are subtle) that can contradict what you are saying. Also, be aware of other people’s body language. It can tell you a lot. For more on body language and what it looks like click on the link.