Begin by gathering all the information that you need to fill out a genogram template. This includes information on family members, such as names, birthdays, and other pertinent information. 2. Open the genogram template in your software program. 3. Place the family members' names into the genogram template. You can do this by typing the names of the family members into the appropriate boxes. 4. Add lines between the family members to indicate their relationships. The lines should indicate the type of relationship, such as parent-child or sibling. 5. Add additional information to the genogram template where appropriate. This could include information about marriage, divorce, adoption, or other important family events. 6. Once all of the family members and their relationships have been added to the genogram template, you can save the file and print it out or share it with others.