The Etymology of Human Male Non-Verbal Communications (or, Why Men Fist-Bump)

:sidelol:

Non-physical communication:

The Nod
Nods are fairly simple in their execution. Eye contact between two men is made, and a choice between two types of nod is instantly made:

Up-nod
Usually friendly, and used when one has met or seen the intended recipient before on good terms. Can and usually does lead to further forms of communication, such as the fist bump.

Down-nod
Politeness in a gesture, quite simply. Used when the two parties are unfamiliar with one another and are on positive grounds, or when the two have met previously and aren’t exactly comfortable with talking to one another. Almost always indicates “I am no threat to you, and I hope you aren’t one to me.” Not to be confused with a head-duck to avoid eye contact.

Funny stuff there... It's a short read and well worth it, IMO... :up:

http://www.joethepea****.com/2008/06/entomology-of-human-male-non-verbal.php

Aaargh, evil profanity filter... Just copy the link and fill in the * with the following letters: c o c k ...to spell the name of an awesome looking bird in the link.