Vocalics refers to anything that that is spoken and heard except for words.

Saying something with a different tone or pitch can change the meaning of what is said. A soft tone communicates friendliness and openness, while a harsh tone communicates dominance and anger. A low-pitched voice is usually associated with strength and maturity. A higher pitched voice is usually associated with nervousness and helplessness.

Loud speakers are often seen as aggressive and overbearing. Quiet speakers are usually seen as polite or afraid. Raised volume can also be used as a sign of importance, lowered volume as a sign of closeness or intimacy.

Rate of speed in talking can often indicate how much a person knows about a subject. If a person is talking fast they often are very knowledgeable on their topic. Likewise, a person who speaks slowly may not be well informed. Rate of speech also varies in people while speaking in front of large groups. A person who talks quickly is usually nervous. Someone who speaks slowly and clearly is probably very comfortable being in front of other people.

Usually represent the emotions that the speaker is feeling. Laughing means they're happy, crying indicates sadness, ect.

Usually used when a speaker is nervous or isn't informed on their topic.