Paralanguage is nonverbal communication such as your tone, pitch or manner of speaking.
An example of paralanguage is the pitch of your voice.
nonverbal means of communication, such as tone of voice, laughter, and, sometimes, gestures and facial expressions, that accompany speech and convey further meaning
The set of nonphonemic properties of speech, such as speaking tempo, vocal pitch, and intonational contours, that can be used to communicate attitudes or other shades of meaning.
(countable and uncountable, plural paralanguages)
para- +"Ž language