The document discusses various types of body language signals and their meanings, including aggressive, bored, closed, deceptive, defensive, emotional, evaluating, open, powerful, relaxed, and submissive body language. Some key signals of aggressive body language are clenched fists, sneers, and lowering the body into an attack stance. Bored body language can include distraction, repetition of actions, and not making eye contact. Closed body language involves crossing the arms or legs and avoiding eye contact. Deceptive body language may include signs of anxiety like sweating or distracted behaviors.