Suprasegmental phonology is concerned with other aspects of phonology, such as tone, stress and intonation. In some periods, suprasegmental phonology has been rather ignored compared to segmental phonology. This is presumably because, in most fields of scientific inquiry with the exception of physics, a linear world view has held sway, and also because the orthography of languages such as English encourages one to see the sound system as being a simple linear sequence of segments.
intonations == They are elements of prosody, in the class of suprasegmentals.
First having the knowledge of nonverbal communication is essential. Pay attention to nonverbals by turning off the sound on your T.V. set and notice the nonverbals! Some people talk with increased gestures, some with increased facial animation. Note your own use of nonverbals. Make sure your gestures are communicative and not distracting. Note what expression you have on your face....is it a frown or a smile? Are you animated or stonefaced? Is the "melody" of your speech (another nonverbal) pleasant and carries meaning for your message? Is your pitch pleasing? Is your rate of speaking too fast or too slow? Do you put pauses in your verbal message? These, too are nonverbal meaning markers called "suprasegmentals."