|Find a Grave memorial for Grandma Henrietta|
Here's an example from my father's family tree. This is the Find a Grave memorial for my Grandma Henrietta Mahler Burk (1881-1954).
Look for Family Links
See the arrow pointing to "Family Members" in the middle of this image?
That shows extensive linking of Henrietta to her parents' memorials on Find a Grave, to her spouse (hi, Grandpa Isaac), and to her siblings and one child (hi, Dad).
Most often, only a family member will take the time to link so many family members. And that's a clue to possibly connecting with a cousin. You can "view source" next to the memorial ID number, then write a nice note to the person who manages the memorial, explaining how you believe you're related to the person in the memorial and asking for more info or offering to share more genealogy info.
Look for Personal Photos
See the two ovals around the words "Added by M Wood" under the grave photo and the person photo?
That tells you who posted the photos. (In this case, me!)
Although volunteers frequently post gravestone photos, they rarely have personal photos of the person who's passed away.
That's why it's a good idea to click on personal photos, read any captions, and then write a nice note to the person who posted them.
Register on Find a Grave to Participate
To send/receive messages, post photos, and link family members' memorials on Find a Grave, you'll need to register, which is free.
Once you've signed in, you can participate in setting bait for cousins and following bait to find possible cousins.