1. Regular Check-ins: Keep in touch with your professional contacts through regular emails, calls, or meetings. 2. Show Appreciation: Acknowledge and appreciate the contributions of others. A simple thank-you can go a long way. 3. Be Honest: Honesty and transparency are crucial for maintaining trust in professional relationships. 4. Adaptability: Be flexible and open to change. Adaptability in your interactions shows that you value the relationship. 5. Conflict Resolution: Handle conflicts professionally and promptly to prevent long-term damage to the relationship.