Some basic communication skills are recognizing who the audience is, showing respect, giving a concise delivery and using an appropriate tone of voice. Body language is also important.
Knowing who the audience is lets the speaker tailor communication so that it is both engaging and understandable to that particular sector of people. Respect is a commodity that everyone deserves, and it's imperative that words are chosen thoughtfully so that they do not offend. A concise delivery ensures clarity, and an even tone of voice ensures a receptive audience.
Body language has the power to enhance or devalue effective communication. A person's stance influences first impressions and can be the difference between whether a person is taken seriously or ignored.