Verbal communication refers to your use of spoken or written language to communicate your thoughts and feelings. These may be in the form of speeches, discussions, presentations, conversations, letters and correspondences, and many others. Think of some favorite public figures that you know and their speeches, or your favorite books and the writers. The effectiveness of their message depends on the mood, kind of words that they use, and the clarity of their message. Volume, speed, and body language are also important factors in case of speeches.