Body Langguage

Studying body gestures 1
Practise these and see how it affects you and pay attention to people does this to see what are they thinking.

Open body gestures - Relaxed and welcoming pose
Closed body gestures - Crossed limbs and avoid eye contact

Practise it to yourself and see how Opened & Closed body gestures affects your mood.
Observe people with these actions based on how you respond to them.