Among the many advantages you can gain from your circle of friends, is leverage or influence that proves to be the most practical of all. Your best approach is to be very cooperative and sympathetic with them. Take the time to really lean in and listen.
Support your friends when they are struggling. Be kind and be sensitive about their needs. Think of ways in which your services will be useful for their growth. After all, your overall income can steer itself along with the success (or failure) of your established network.