The content on this map are talking about giving and receiving. For example In a neighbor's birthday party You are invited to join it build good relationships relations. But in another sense it was later helped throw the switch that is bound to help you, you help me, I do not want to trade relations. When we go to a restaurant we ordered food. If we have good service and satisfaction. It may be tipping in return for a service, or may be used frequently. So, in my opinion, the concept of giving and receiving. I agree with it because it is beneficial to both parties. Mutual assistance, friendship and whether the benefits. The giving and receiving is a creative idea.