boredom, nervousness and insecurity signals
Many body language signals indicate negative feelings such as boredom, disinterest, anxiousness, insecurity, etc.
The temptation on seeing such signals is to imagine a weakness on the part of the person exhibiting them.
This can be so, however proper interpretation of body language should look beyond the person and the signal - and consider the situation, especially if you are using body language within personal development or management.

Ask yourself:
What is causing the negative feelings giving rise to the negative signals?
It is often the situation, not the person - for example, here are examples of circumstances which can produce negative feelings and signals in people, often even if they are strong and confident:
dominance of a boss or a teacher or other person perceived to be in authority
overloading a person with new knowledge or learning
tiredness
stress caused by anything
cold weather or cold conditions
lack of food and drink
illness or disability
alcohol or drugs
being in a minority or feeling excluded
unfamiliarity - newness - change
Ask yourself, when analysing body language:
Are there external factors affecting the mood and condition of the individual concerned?
Do not jump to conclusions - especially negative ones - using body language analysis alone.

body language - translation of gestures, signs and other factors - quick reference guide
When translating body language signals into feelings and meanings remember that one signal does not reliably indicate a meaning.
Clusters of signals more reliably indicate meaning.
This is a general guide. Body language should not be used alone for making serious decisions about people.
Body language is one of several indicators of mood, meaning and motive.
This is a guide, not an absolutely reliable indicator, and this applies especially until you've developed good capabilities of reading body language signs.
Some of these signs have obvious meanings; others not so.
Even 'obvious' signs can be missed - especially if displayed as subtle movements in a group of people and if your mind is on other things - so I make no apology for including 'obvious' body language in this guide.
Also remember that cultural differences influence body language signals and their interpretation. This guide is based on 'Western World' and North European behaviours. What may be 'obvious' in one culture can mean something different in another culture.
body language signs translation
The body language signals below are grouped together according to parts of the body.
Left and right are for the person giving the signals and making the movements.
This is a summary of the main body language signals.