One does not have to do anything to become a grandfather. It simply happens when your child has a child. It is up to you to decide how involved you will be in your grandchild's life. There is an inherent biological relationship but the emotional bonding between grandfather and grandchild comes only with effort. It happens when the grandchild sees that you are open to forming a relationship. It happens when you get off your easy chair and make the effort to see what matters to your grandchild.