Most of the time, there's more to what we say than the words we use. English language expert Patricia O'Conner says that the tone, volume and pitch of our voice, as well as our body language, plays a huge role in how we communicate. Those aspects of conversation are called paralanguage.
"The para in paralinguistics is taken from a Greek word. It means parallel or equal to but outside of language," she explains. "The message is right there under the surface."