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  2. Hand rubbing - Wikipedia

    en.wikipedia.org/wiki/Hand_rubbing

    Hand rubbing. Hand rubbing is a gesture that conveys in many cultures either that one has a feeling of excited expectation, or that one is simply cold. [1] In Ekman and Friesen's 1969 classification system for gestures, hand-rubbing as an indication of coldness is an emblem intentional gesture that could equally well be verbalized.

  3. Hand clasping - Wikipedia

    en.wikipedia.org/wiki/Hand_clasping

    Hand wringing is a gesture characterized by repeatedly rubbing or twisting one's hands together, often as a sign of distress or nervousness, while folding or clasping.. Hand wringing has been studied in psychology to understand its underlying motivations and implications for mental well-being, of which include nonverbal communication and self-soothing beha

  4. List of gestures - Wikipedia

    en.wikipedia.org/wiki/List_of_gestures

    Hand-rubbing, rubbing both hands palms together along the fingers' direction may mean that one is expecting or anticipating something or that one feels cold. U.S. servicemen surrendering with raised hands during the Battle of Corregidor. Hands up is a gesture expressing military surrender by lifting both hands. This may have originated with the ...

  5. Haptic communication - Wikipedia

    en.wikipedia.org/wiki/Haptic_communication

    Striking, pushing, pulling, pinching, kicking, strangling and hand-to-hand fighting are forms of touch in the context of physical abuse. Touch is the most sophisticated and intimate of the five senses. [2] Touch or haptics, from the ancient Greek word haptikos, is vital for survival. [3] Touch is the first sense to develop in the fetus. [4]

  6. Posture (psychology) - Wikipedia

    en.wikipedia.org/wiki/Posture_(psychology)

    Showing the palms of the hands can be a signal of open posture, especially if the hand is relaxed. Showing the back of the hand or clenching hands into fists may represent a closed posture. Hands clasped behind the back may also signal closed posture even though the front is exposed because it can give the impression of hiding something or ...

  7. Stimming - Wikipedia

    en.wikipedia.org/wiki/Stimming

    Stimming can sometimes be self-injurious, such as when it involves head-banging, hand-biting, excessive self-rubbing, and scratching the skin. [ 25 ] As it serves the purpose of self-regulation and is mostly done subconsciously, stimming is difficult to suppress. [ 26 ]

  8. Finger snapping - Wikipedia

    en.wikipedia.org/wiki/Finger_snapping

    A video of finger snapping Alternative snapping technique. Snapping (or clicking) one's fingers is the act of creating a snapping or clicking sound with one's fingers. . Primarily, this is done by building tension between the thumb and another (middle, index, or ring) finger and then moving the other finger forcefully downward, so it hits the palm of the same hand at a h

  9. Friction - Wikipedia

    en.wikipedia.org/wiki/Friction

    Friction can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Another important consequence of many types of friction can be wear, which may lead to performance degradation or damage to components. It is known that frictional energy losses account for about 20% of the ...