A wave is a nonverbal communication gesture that consists of the movement of the hand and/or entire arm that people commonly use to greet each other, but it can also be used to say goodbye, acknowledge another's presence, call for silence, or deny someone. The wave gesture is an essential element of human language.
The waving of the hand is a nonverbal gesture that has an unclear origin but is said to have dated back to as far as the 18th century[irrelevant citation] however, it was not called waving and was not used as saying "hello", or "goodbye." The original gesture of waving was saluting. Prior to the 18th century, knights removed the guard of their helmets to show their identity, following with a salute to show they come in peace; saluting is also used to show others that they are not armed with weapons and do not pose a threat. The action of saluting was formalised only in the 1780s by European armies, since then, it has become a common way of properly addressing one another in the military setting. There is also an alternate ASL origin In the 1800s, waving handkerchiefs was a way to show approval or excitement or to call attention for the deaf, which is known as the "Chautauqua salute." It is recorded during a Canadian event in 1884 that multiple attendees forgot their handkerchief and so waved their hands in the air as a way to clap during the event. In modern days, the accepted and common way for a deaf individual to applaud is raising hands in the air and simultaneously shaking their open hand and moving their fingers back and forth.
Sign language users also wave for "hello" and "goodbye." For an ASL user, saying "goodbye" is done by repeatedly opening and closing the right hand, and it faces the receiver of the gesture. This method is used to say "goodbye" to a group of people; saying "goodbye" to an individual is done with a different method. Saying "hello" is done by the traditional waving of the right hand. "Hello" is also communicated in ASL with an open palm salute starting at the forehead and moving down to the waist.  This method is used to say "hello" to a group of people, likewise with implying "goodbye", there is a different method to say "hello" to an individual.
The waving of the hand has multiple variables and styles of performing the gesture. The common waving of the hand to mean "hello" or "goodbye" is done by moving the hand side to side, but there are more than one form of waving, each form having its own meaning.
Waving has four variables: the open palm (is the palm curved or straight), the angle of the wave (big waves or short waves), the elevation of the hand (above the head or held low), and the movement pattern of the wave (sideways rotation, up and down motion, side to side motion).
There are different ways to wave the hand; some include the standard side-to-side wave, palm wide wave, wiggly wave (finger wiggle wave), "flirtatious" wave, open-and close finger wave, arm wave, and the "Miss America" wave.
People wave by raising their hand and moving it from side to side. Another common wave is to raise one's hand and repeatedly move the fingers downward toward the palm. A variant known as the wiggly wave consists of holding the hand near shoulder level and wiggling the fingers randomly. This can be used to appear cute or flirtatious to the target of the wave. The gesture can be used to attract attention at a distance. Most commonly, though, the gesture means quite simply "hello" or "goodbye. The royal wave, also known as a regal wave, pageant wave, parade wave, or Miss America wave, is a similar but distinct kind of hand waving gesture in which a person executes something alternatively described as either a 'plastic grin' with 'fingers cupped' and 'forearm swaying side-to-side' or a "vertical hand with a slight twist from the wrist". The gesture is often performed, to various degrees, by different members of the British royal family, signaling anything from regality, class and control to elegance, restraint and character.
In American culture, waving is a known gesture that means "hello" or "goodbye". That gesture can also be used to call the attention of someone, for example waving down a taxi, or waving at a friend from a great distance. That gesture could be interpreted differently and have a different meaning or even be highly offensive in South Korea, Nigeria, Greece, Bulgaria, Latin American countries, India, Japan, and other places.
In South Korea, it is inappropriate to call the attention of someone with a palm-up arm wave. Instead, the proper way to wave to someone or call for attention is to wave vertically, making sure the palm of the hand is in a downward position. It is not uncommon to see waving among the younger population (in South Korea) to display their departure rather than bowing, which is the traditional way of greeting one another. Waving the hand outward towards the face is also used to grab the attention of a pet or child.
Waving the hand to say "hello" or "goodbye" is done by moving the fingers down towards the wrist and back to an open palm position while keeping the palm facing out. Another way to say "goodbye" is done by wagging the fingers. That motion (wagging fingers) is also used to say "no."
In Greece, waving the hand with the palm facing out is an insult, rather than a greeting.
Holding the hand out, palm facing out and all five fingers exposed is offensive and dates back to the Byzantine times, when moutza would involve prisoners' faces being tainted with charcoal by their own hands and being forced to parade down town streets, moutza. In American culture, holding the hand out like that can be used to call someone's attention or to greet someone.
In Ireland, the deaf use the hand wave to greet one another. Deaf women use an "open palms up half moon shape" type of wave to greet one another. Men, however, use a different way of greeting one another or women.
In Latin American countries, people greet one another by kissing, hugging or shaking hands. Waving their hand is uncommon, but it neither has any negative representation nor causes offense.
In Nicaragua, waving to someone is tolerated but does not display proper etiquette. Instead, it is common to hug, kiss, or shake hands, following with the proper time of day ("good morning," "good afternoon," or "good evening").
- Motorcycling greetings ("Biker wave")
- Plessis, Irina Garmashova-Du (January 1998). "Russian Male Gestures for Greeting and Bidding Farewell". Language Matters. 29: 132–178. doi:10.1080/10228199808566136.
- Gesture. Cartmill, Erica A.; Goldin-Meadow, Susan Matsumoto, David (Ed); Hwang, Hyisung C. (Ed); Frank, Mark G. (Ed), (2016). APA handbook of nonverbal communication. APA handbooks in psychology., (pp. 307-333). Washington, DC, US: American Psychological Association, xxiv, 626 pp.
- Hodgman, Charlotte. "What are the origins of saluting?". History Extra. Immediate Media Company Limited. Retrieved 19 October 2016.
- "ORIGIN OF THE HAND SALUTE". US ARMY QUARTERMASTER CENTER & SCHOOL. U.S. Army Quartermaster Corps Historian. Retrieved 19 October 2016.
- Harrington, Tom. "Visual applause: Where did it come from?". libguides. Gallaudet University Library. Retrieved 19 October 2016.
- Nickens, Carol (2008). The History of American Sign Language. The United States: LuLu Press. p. 170. ISBN 978-1-4357-4076-1. Retrieved 31 October 2016.
- "ASL sign for HELLO".
- Potter, Anne. "Magic Words in American Sign Language (ASL)". Emily Post. Emily Post Institute, Inc. Retrieved 31 October 2016.
- Straker, David. "Changing Minds". ChangingMinds. Retrieved 21 November 2016.
- Armstrong, Nancy; Wagner, Melissa (2003). Field Guide to Gestures: How to Identify and Interpret Virtually Every Gesture Known to Man. Philadelphia: Quirk Books. ISBN 1931686203.
- Cooke, Jean (1959). "A few gestures encountered in a virtually gestureless society". Western Folklore. 18 (3): 233–237. doi:10.2307/1497708. JSTOR 1497708.
- Henninger, Danya (2013-09-06). "Wave Like Miss America, Get Freebies at Continental". Zagat. Retrieved 2013-12-13.
- Kindelan, Katie (2012-06-05). "Royal Wave: How Do the Royals Do It?". ABC News. Retrieved 2013-12-13.
- Morse, Caroline (24 March 2014). "10 Innocent Hand Gestures You Should Never Use Abroad". The Huffington Post. Smarter Travel. Retrieved 26 November 2016.
- "Innocent gestures that mean rude things abroad" (PDF). Tusd1. Tucson Unified School District. Retrieved 26 November 2016.
- Adams, Dylan (20 July 2013). "5 Cultural Insults to Be Careful of When You're Abroad". Under30CEO. Under30CEO. Retrieved 26 November 2016.
- De Vito, J. (1993). Essentials of human communication. New York: HarperCollins. pp. 618–634.
- Atwater and Waldman, Leanne and David (2009). Leadership, Feedback, and the Open Communication Gap. Lawrence Erlbaum Associates. p. 74. ISBN 9780805853971.
- Swick, Dennis. "Greetings used around the world". Instituto InterGlobal. Retrieved 28 November 2016.
- Axtel, Roger (1991). Gestures: The Do's and Taboos of Body Language Around The World. John Wiley & Sons.
- Axtell, Roger (1993). The Do's and Taboos Around the World. John Wiley & Sons.
- "Cultural Etiquette: South Korea". eDiplomat. Retrieved 28 November 2016.
- Morris, Desmond (1979). Gestures, their origins and distribution. New York: Stein and Day. pp. 241. ISBN 0-8128-2607-8.
- "6 Innocent Hand Gestures That Can Land You in Hot Water Overseas". Expat Info Desk. 2 August 2011. Retrieved 29 November 2016.