Facial expressions give away whether someone is being honest

Wouldn’t the world be such a simple place if someone’s nose really grew when they told a lie? Then we wouldn’t have to spend so much time trying to determine whether people are telling the   truth. Luckily, there are scientific ways to tell if someone is being honest by judging from their facial expressions. 【小题1】.

They’re holding the right amount of eye contact.

Eyes have the power to be extremely telling at times, particularly when it comes to whether people are telling the truth or not. When I think about it, 【小题2】, but it turns out the opposite is true.

Their rate of blinking doesn’t change.

Stay to the eyes for a moment — blinking is a very easy way to detect if someone is telling you the truth. Those who are being honest will maintain a consistent rhythm of blinking as they’re speaking to you. 【小题3】, and then the blinking speed will increase up to eight time faster than normal after the lie has been told.

You haven’t noticed them touching their nose.

【小题4】. Are they reaching up and touching their nose as they’re speaking? Nose touching is a sign of lying. This is because certain tissues in the nose usually swell when a person is telling   a lie, making the nose itch. If the person hasn’t been touching their nose at all, take this as a good sign.

【小题5】.

A fake smile could mean something is up. Liars have an “increased activity of the ‘zygomatic major muscles’, located around the mouth,” and it can force the face into a fake smile.