Signing the guestbook is an important part of any funeral or memorial service where a guestbook has been set out. This lets the family see all the guests who were touched by the life of their loved one in whatever big or small way.
Families may not always have a chance to meet all the guests at a funeral or lose track of all the people who they have met. A guestbook provides a record of who attended a funeral and can provide a tangible memory of the ceremony for the family that offers comfort when they are missing their loved one.
You should only sign your name on the guestbook at a funeral. People who are unfamiliar to the family may wish to add their relationship to the deceased. An appropriate example would be, “Jane Doe, College or University Friend”.
The guestbook is not meant as a place to write down messages of condolences to the family. Any guests who wish to write express solace through a message should write a letter in the family.