Kelly is listening intently to her friend, Sheri, talk about her boyfriend who is leaving for 1-year

Kelly is communicating using paralinguistics.

Explanation:

Paralinguistic communication happens by means other than words. It takes place through gestures, facial expression, body language, tone, pitch, modulation, etc. Even without words, some type of message is being conveyed.

When we read the description in the passage, we note that Kelly is not communicating with words. Yet, Sheri knows it is safe to keep on talking, since Kelly is encouraging her with her "mmm-hmmm"'s. Kelly is basically letting Sheri know that she is interested in the conversation and that she wishes her friend to keep on speaking. She is communicating all that in a paralinguistic manner.

Paralinguistics

Explanation:

Paralinguistics refer to how we communicate without using words but facial expressions,body posture and even a change in a tone of our voice in order to sometimes make an emphasy to what we are saying or add some additional meaning.

Nodding our head or any words that doesn't use the actual langauge are always important such as what Kelly said it assures someone as they continue with a conversation that you are paying attention.

She is communicating using Paralinguistics. Paralinguistics is the study of vocal (and sometimes non-vocal) signals beyond the basic verbal message or speech also known as vocalics. Paralinguistics are the aspects of spoken communication that do not include words.These may add emphasis or shades of meaning to what people say.