TrueMotion Family allows you to see the location of anyone who shares an app Family with you. Family member locations are indicated with hexagons, which will have either the family member's name/initial or a photo if they've set one.
To zoom in on a family member and see their location more precisely, just tap on their hexagon along the bottom of the map.
If you're the first user of TrueMotion Family in your family, you'll want to invite additional members to your Family. If Family members are already using TrueMotion Family, you can invite them, or you can ask them to invite you to an existing Family.
To invite someone to your family, you can hit the gray "add a family member" hexagon along the bottom of the family map, or manage your family from the Family Roster screen, which you can access by tapping the family icon on the upper right of the family map.