Step 1: Tap on the Settings button at the top left corner on your timeline (circled in red below):
Step 2: Tap on the 'Invite family' option (circled in red below):
Step 3: Start entering their names or email addresses from the 'Search name or type email' section.
You can give them permissions as a parent or as a loved one, and you can invite them by using their email address or their phone number.
Any questions or requests? Drop us a line at firstname.lastname@example.org. We'd love to hear from you!