On Deadly Sin #2, we know that you know that selfishness is not an appealing mindset. Trickier yet, people often fail to see when they are being selfish. You can avoid this mistep by recognizing networks are based on give-and-take relationships with others. That means that while you may others for their time and advice, for their willingness to look out for you when they hear of opportunities, you will have to do the same. You will need to learn to ask about their goals and learn if and how you can help them. Some people in your network may not really need or want that much from you. Yet, everyone will appreciate expressions of gratitude, such as thank you notes or calls, and follow-ups on your progress.