You are contagious | Vanessa Van Edwards | TEDxLondon · TEDx Talks
Vanessa Van Edwards通过研究TED演讲，揭示了肢体语言和手势如何影响他人对我们的看法，适合练习自信表达和人际沟通。
Translator: Ki Yun Lee Reviewer: Peter van de Ven
译者：李基云（Ki Yun Lee） 审稿人：彼得·范德文（Peter van de Ven）
Hello, my name is Vanessa, and I am a recovering awkward person.
你好，我的名字是瓦妮莎。我曾经是个不太擅长与人交往的人，但现在正在努力改变自己。
This is me at the peak of what I like to call my plaid vest phase.
这就是我处于所谓的“格子背心时尚期”的巅峰状态时的样子。
Luckily, my years of social awkwardness led me to a fascinating career trying to figure out how people work.
幸运的是，我多年在社交场合中表现出的笨拙与不自在，反而促使我选择了一条非常有趣的职业道路——致力于研究人类的行为模式与思维方式。
So, what I didn't realize is that
所以，我没有意识到的是……
many years ago, I would do an experiment that led me right on this stage in front of you here today.
许多年前，我进行了一项实验，正是这项实验让我走到了今天站在你们面前的这个舞台上。
My lab researchers and I were curious about TED Talks.
我和我的实验室研究人员对 TED 演讲非常感兴趣。
We wanted to know, Why do some TED Talks go viral and others don't?
我们想知道：为什么有些 TED 演讲会迅速走红（即被大量观众观看或分享），而另一些则没有呢？
So we embarked on a huge experiment.
于是，我们开始了一项规模庞大的实验。
We analyzed thousands of hours of TED Talks, looking for patterns.
我们分析了数千小时的 TED 演讲视频，试图从中发现其中的规律或模式。
I wasn't sure if we would find anything, so we were analyzing body language, hand gestures, vocal variety - we even looked at outfit choices,
我不确定我们是否能找到什么线索，因此我们仔细观察了对方的肢体语言、手势以及说话时的语调变化；甚至连他们的着装选择也一并考虑在了分析范围内。
which made today particularly pressure-filled.
这使得今天格外充满压力。
And very quickly, there was a pattern in the data that made me curious.
很快，我就发现数据中存在某种规律，这让我感到非常好奇。
And after we coded more and more TED Talks, we realized there was a pattern.
在我们为越来越多的 TED 演讲内容编写代码之后，我们发现其中存在某种规律（或模式）。
Now, before I tell you what that is, I have a personal question for you, which is, When you see someone,
现在，在我告诉你们那是什么之前，我有一个个人问题想问你们：当你们看到某个人的时候……
what part of the body do you look at first?
你会先看身体的哪个部位？
You can just call it out.
你可以直接把它说出来。
What do you look at first when you see someone?
当你看到某个人时，你首先会注意到什么？
Face, eyes - so most people - shoes.
脸、眼睛——这些是大多数人的外貌特征；还有鞋子。
They are very high.
它们的高度非常高。
So most people say eyes, face or mouth.
大多数人会回答“眼睛”、“脸”或“嘴巴”。
But actually, when we first see someone, the first place we look is the hands.
但实际上，当我们第一次见到某人时，我们首先会看的是他们的手。
And this is left over from our caveman days.
这就是我们远古时代遗留下来的东西。
Because if we were approached by a
因为如果我们遇到这样的情况……
stranger caveman, the first place we looked was the hands to see if they were carrying a rock or a spear.
这位陌生的“穴居人”……我们首先观察的是他的双手，想看看他是否手持石头或长矛。
We wanted to know if we were safe, if they were friend or foe.
我们想知道自己是否安全，想知道他们到底是朋友还是敌人。
Now, this actually still remains from caveman days, and when we can't see someone's hands, something interesting happens.
其实，这种现象可以追溯到远古时代（也就是“穴居人时代”）。当我们无法看到某人的手时，就会发生一些有趣的事情。
So I just did something a little mean to your brain.
其实，我刚刚对你的“大脑”做了一件有点“刻薄”的事情……
You should start to feel just a little bit uncomfortable.
你应该开始感到有点不适了。
The reason for that is when you can't see my hands, you wonder, What is she doing back there?
原因在于：当你看不到我的手时，你就会好奇：“她在那里到底在做什么？
And then, the longer I leave my hands behind my back, you get more and more distracted because you can't see them.
而且，我把手背在背后的时间越长，你的注意力就越容易分散——因为你根本看不到自己的手。
And eventually, your brain is just screaming, Can't she just bring her hands off from behind her back?
最终，你的大脑简直要“尖叫”出来了：“她就不能把双手从背后拿下来吗？
And the moment I bring them back out, it feels so much better.
当我把它们重新拿出来的那一刻，感觉好多了。
And this because our brain knows that if we can't see hands, we can't see intention.
之所以如此，是因为我们的大脑明白：如果我们无法看到别人的手，也就无法理解他们的意图（即他们想要做什么）。
And we found as we compared the most viewed TED Talks side by side with the least viewed TED Talks,
当我们将观看次数最多的 TED 演讲与观看次数最少的 TED 演讲进行对比时，我们发现了一些有趣的现象。
we found a pattern with hand gestures.
我们发现了一些与手势相关的规律（或模式）。
Specifically, on average, the most popular TED talkers use an average of 465 hand gestures in 18 minutes.
具体来说，最受欢迎的 TED 演讲者在 18 分钟内平均会使用 465 个手势。
Yes, we painstakingly counted every single one.
是的，我们仔细地数过了每一个（物品）。
I have 465 prepared for you today.
今天我为你们准备了465个（相关内容）。
And the least popular TED talkers use an average of 272 hand gestures.
而那些最不受欢迎的 TED 演讲者平均会使用 272 个手势来辅助他们的演讲。