Gestures

A gesture is a non-vocal bodily movement intended to express meaning. They may be articulated with the hands, arms or body, and also include movements of the head, face and eyes, such as winking, nodding, or rolling ones' eyes. The boundary between language and gesture, or verbal and nonverbal communication, can be hard to identify.

Although the study of gesture is still in its infancy, some broad categories of gestures have been identified by researchers. The most familiar are the so-called emblems or quotable gestures. These are conventional, culture-specific gestures that can be used as replacement for words, such as the handwave used in the US for "hello" and "goodbye". A single emblematic gesture can have a very different significance in different cultural contexts, ranging from complimentary to highly offensive [9] The page List of gestures discusses emblematic gestures made with one hand, two hands, hand and other body parts, and body and facial gestures.

Another broad category of gestures comprises those gestures used spontaneously when we speak. These gestures are closely coordinated with speech. The so-called beat gestures are used in conjunction with speech and keep time with the rhythm of speech to emphasize certain words or phrases. These types of gestures are integrally connected to speech and thought processes.[10] Other spontaneous gestures used when we speak are more contentful and may echo or elaborate the meaning of the co-occurring speech.For example, a gesture that depicts the act of throwing may be synchronous with the utterance, "He threw the ball right into the window." [10]

Gestural languages such as American Sign Language and its regional siblings operate as complete natural languages that are gestural in modality. They should not be confused with finger spelling, in which a set of emblematic gestures are used to represent a written alphabet.

Gestures can also be categorised as either speech-independent or speech-related. Speech-independent gestures are dependent upon culturally accepted interpretation and have a direct verbal translation.[7] A wave hello or a peace sign are examples of speech-independent gestures. Speech related gestures are used in parallel with verbal speech; this form of nonverbal communication is used to emphasize the message that is being communicated. Speech related gestures are intended to provide supplemental information to a verbal message such as pointing to an object of discussion.

Gestures such as Mudra (Sanskrit) encode sophisticated information accessible to initiates that are privy to the subtlety of elements encoded in their tradition.