The document discusses different types of body postures and what they communicate. Closed postures obscure vulnerable body parts and can indicate detachment, disinterest, or hostility. Open postures expose vulnerable parts and often communicate friendliness. Hand positions are also important - showing palms signals openness while fists or hands behind the back indicate closedness. Body orientation and inclination during conversations also carry meaning, with angling toward someone expressing acceptance and angling away expressing dislike. Posture can also reveal social status, mood, stress levels, and confidence.