The document discusses body language during interviews and interactions. It notes that a weak handshake, invading personal space, crossing arms, playing with hair, bad posture, lack of eye contact, fidgeting, and hiding hands can convey lack of confidence or discomfort. In contrast, standing tall, taking up space, exposing vulnerable areas, and leaning back with hands behind the back can convey power and confidence. It recommends practicing body language and listening to a TED talk on the topic.