Networking is not just about exchanging contact information and business cards. It is about building rapport and trust with the people you meet, and establishing long-term relationships. To do this, you need to communicate effectively and authentically, and follow up regularly. When you communicate, be respectful, polite, and professional, but also friendly, personal, and engaging. Share some information about yourself, such as your background, skills, goals, or hobbies, but also listen actively and attentively to what others have to say. Ask relevant and thoughtful questions, and show appreciation and recognition for their insights and achievements. When you follow up, be consistent and timely, and use different channels, such as email, phone, or social media. Keep in touch with your contacts, and provide value, support, or assistance when possible. For example, you can share useful resources, articles, or opportunities, offer feedback or advice, or introduce them to other contacts.