1. Body Language
Hind Aldhlous

2. Do you Know ..
We can understand feeling (93%) from body language and just (7%) of communication
consists of words, and when we learn body language we can control very well in ourselves and understand other people very well.

3. Eyes Language
The eyes are frequently referred to as the "windows to the soul" since they are capable of revealing a great deal about what a person if feeling or thinking. As you engage in conversation with another person, taking note of eye movements is a natural and important part of the communication process. Some common things you may note is whether people are making direct eye contact or averting their gaze, how much they are blinking, or if their pupils are dilated.

4. Eye gaze
When a person looks directly into your eyes when having a conversion, it indicates that they are interested and paying attention. However, prolonged eye contact can feel threatening. On the other hand, breaking eye contact and frequently looking away may indicate that the person is distracted, uncomfortable, or trying to conceal his or her real feelings.

5. Pupil size ..
One of the most subtle cues that eyes provide is through the size of the pupils. While light levels in the environment control pupil dilation, sometimes emotions can also cause small changes in pupil size.

6. Handshakes The first picture has 3 types of handshakes.
The second one has diplomatic handshake ,and this type of handshake usually used by presidents and man who work in governments.

7. Faces  We can read feeling for someone from his/her easily.
For example: we can know is he happy from bright in his eyes or he angry from his eyebrow.

8. We can notice the differences between feeling from faces.

9. You can find extra information in websites and books 
For example: these two books have high evaluation in Good reeds website

10. Finally, there are some advices to you ;)
Have eye contact, but don’t stare
Use your hands more confidently
Don’t touch your face
Keep you head up
Don’t cross your arms or legs
Smile and laugh
Relax your shoulders
Don’t stand too close