Скачать или смотреть Decoding Gestures

Here are the key points on how to read body language reliably:
Pay Attention to Context

Don't look for single "tells" like blink rate that are supposed to reveal if someone is lying. Individual gestures can have multiple meanings depending on context.
Seek to understand if the overall body language signals openness, resistance, friendliness, etc. rather than making accusations.

Look for Deviations from Normal Behavior

You can more reliably read the body language of people you know well, like colleagues, friends and family.
Notice when their body language deviates from how they normally act, as that signals some stronger emotion.

Consider Words and Body Language Together

Don't just focus on body language alone. Pay attention to both what people say and how they say it with their body language.
The total communication includes words, tone, gestures, facial expressions etc.

It Takes Time and Practice

Reading body language reliably is not about memorizing a list of gestures and their meanings.
It requires observing people over time, noting their typical patterns, and detecting meaningful deviations from those patterns.
With practice, you can become a better reader of the body language signals from people in your life.