The fourth step to avoid emotional negotiation traps is to leverage your emotions to enhance your negotiation performance and influence. Emotions are not only obstacles, they are also opportunities to create rapport, trust, and value with the other party. Emotions can help you communicate your interests, motivations, and preferences more effectively and persuasively. Emotions can also help you understand the other party's emotions, needs, and expectations more accurately and empathetically. To leverage your emotions, you need to use emotional intelligence, which is the ability to perceive, understand, manage, and use emotions in yourself and others. Use positive emotions, such as enthusiasm, curiosity, or gratitude, to create a positive atmosphere and a cooperative mindset. Use emotional cues, such as tone, body language, or facial expressions, to read the other party's emotions and adjust your approach accordingly. Use emotional appeals, such as stories, examples, or testimonials, to connect with the other party's values and emotions and persuade them to agree with you.