Why do we move our hands while talking?
340723
So that insects don't fly into our mouth.
1152677
Just like how it sounds: The faster you move your arms, the faster your legs will move. This is why my coach always yells, "ARMS!" lol
748982
Deaf people would go to great lengths to free up their hands. If they can't they would still be able to communicate to an extent. Sign language, for the most part, is conceptual. One doesn't have to follow the grammatical rules as gospel to convey an idea or story. \n\nIn addition, sign language isn't used with just the hands. Facial expression, and body movement is HUGE part of sign language. If one person's arm is full, they can still communicate pretty well. Even in the case when both hands are full, they can still communicate.\n\nIf worse comes to worst, they can always speak to each other and read the other's lips. Most deaf people wouldn't want to do this. I mean, would you honestly want to use something you can't fully understand? There's a lot os guess work done in lip-reading ("I love you," and "elephant shoes"). Not only that, but deaf people aren't confident about their speaking skills since they can't hear it.
67457
Because we have muscles on both sides of our fingers - or rather, tendons.  Our legs and our arms are the same way.  In order to extend our fingers or to clench our fingers, we have to use opposite muscles in order to do so.  When we relax BOTH sets of muscles, we end up in the middle, and hence, our fingers take on a curved look.
316744
Sexual stimulation caused by manual manipulation (i.e. using your hands).
262671
I think nowadays it's just good manners to do so.\n\nDragging up from the deepest corners of my memory, I have a feeling that the origin of the handshake was that it showed your enemy you were unarmed....most people being right handed....\n\nI much prefer a person with a firm handshake than one whose handshake can be likened to a limp fish....not nice at all.
826898
I think we do it because we love to talk and we love to get an emotional reaction when we say something.
242432
As far as being talkative, I for one believe that one should talk when there is a need for it. I find motor mouths very annoying. Don't you? Some who you might consider shy, may not be shy at all. They may just not be agressive in their social behavior.
593421
It means nothing, people have all all kinds of things they do when communicating face to face. I have a friend who likes to rub his ear lobe when talking to people in close proximity.  Just remember it has nothing to do with you.
825266
maybe because the way you talk.
60645
It's when the brain is trying to send signals to the mouth while speaking.  If the brain sends the words to the mouth too fast, the mouth can't move fast enough, so the entire system becomes frustrated and begins stammering.  One of the better ways to avoid this is to think about what you want to say before you say it.  Cause yourself to slow down when talking and eventually your brain and mouth can get back on the same wavelength again.
574490
Body language is instinctual, and actions speak louder than words. Maybe.
127104
Without going into details that go away from the point, a nerve impulse travels from your brain to your hand, telling the muscles in your arm and hand to work to raise your hand.
1085969
Because it causes the moisture on your hand to flash freeze and stick to it.  Just don't do it with your tongue!
1096674
A Japanese student of mine once answered this question by explaining that when her boss or social superior calls her on the phone, she bows - even though it's a phone call.\n\nKorean stduents asked to raise their hands in class to answer a question always touch the elbow of the raised hand with the other hand.  It is considered impolite not to.\n\nAnd my own nation - the English - have the quaint custom of turning their arses towards theatre/cinema-goers when we shuffle past in front of their seats to get to our own.  (In mainland Europe, you turn to face these people and greet them).  A Russian friend of mine once nearly hit someone for this as he thought it was a deliberate insult.
387542
because air builds up inside us. It happens if you eat quickly or talk fast because you aren't getting enough air or you are getting air randomly so your body doesn't have chance to use it properly. Then it gets stuck and it comes out as hiccoughs
691368
Sound as if you need to talk.*\n\nMaybe alot of confusion can be worked out.