There are 3 ways of joining a Circle:
A CIRCLE URL
Anyone who is already a member of Circle can share the Circle URL with you. Upon tapping this URL, you will be taken to the Circle join screen where you can either join or request to join.
Please note: you can only join workplace Circles on desktop or in the iOS or Android apps. Joining on the mobile website is currently not supported.
A CIRCLE INVITATION
If you are invited to join a Circle, it will appear in your Circle notifications tray. Navigate to the Circle's home page and tap on the bell icon. Any Circle invites will display here and can be accepted from this tray.
SEARCHING OR BROWSING CIRCLES
Tap on the join CTA beside the Circle you wish to join in the search or browse screens.
Remember that if you wish to join a private Circle, the admin will have to accept your join request before you become a Circle member.