Chronemics is the way time is used. Our use of time can communicate and send messages, non-verbally. The way we use time and give our time to others or not give it can communicate different messages. Chronemics can send messages about what we value to others, and also send messages about power. “When you see someone who is in a position of power over you, like your superior, it is not uncommon to have to wait. However, you probably consider it a bad form to make you wait for a more powerful person. In fact, the rule seems to be that the time of powerful people is more precious than the time of less powerful people.  Scientific research on communication and non-verbal behaviour began in 1872 with the publication of Charles Darwin`s book The Expression of the Emotions in Man and Animals.  In the book, Darwin argued that all mammals, humans and animals, showed emotions through facial expressions. He asked questions such as: “Why do our facial expressions of emotions take the particular forms they have?” and “Why do we bend our noses when we are indignant and bare our teeth when we are angry?”  Darwin attributed these facial expressions to helpful associated habits, which are behaviors that once had specific and direct functions in our evolutionary history.  For example, a species attacked by the bite, teeth exposed, was a necessary action, before an attack and wrinkles of the nose reduced the inhalation of bad odors.
Darwin`s predecessors developed a much-appreciated explanation for the question of why facial expressions persist even if they are no longer used for its original purposes. According to Darwin, people continue to make facial expressions because they have acquired a communicative value during the history of evolution.  In other words, people use facial expressions as external evidence of their inner state. Although The Expression of the Emotions in Man and Animals is not one of Darwin`s most successful books in terms of quality and overall impact in this area, his early ideas began the plethora of research on the species, effects and expressions of communication and nonverbal behaviour.  What message do you think: your non-verbal communication (behaviour and voice), or your verbal communication (only words)? “You probably believe in the non-verbal message,” says Darlene Price, author of Well Said! Presentations and conversations that have results. Good eye contact. Eye contact is your main tool for making non-verbal connections with others, Price says. “It conveys your commitment, interest and warmth. Ideally, if you are talking to someone else, you look them in the eye for at least two or three seconds before looking away or going to the nearest person. Looking at someone only for a second or less is known as the eye species and gives insecurity, fear or dodging. The next time you`re in a meeting or making a speech, ask a friend to count how long you look at certain people and if you visually take care of anyone in the room.
The gestures differ from culture to culture, depending on how they are used and what they mean.