Whatever the mark of red on the forehead was — it seems the Nephites had something against it for some reason.
But, yeah — ultimately I guess we're free to fill in the picture of who they were rather liberally.
Tat for Nephi? Sheol no.
Tat for Sam? Yeah, a lil anklet one. Just enough to be teased — but not too badly.
Tat for Laman? You know it. "Long live Jerusalem!" — shoulder to shoulder.
Tat for Lemuel? Yeah — thanx to Laman & a little wine. But the wife ain't happy about it.