The Profile Strength meter is on the right side of your profile and gauges how robust your profile is. The strength will increase as you add more content.
Move your cursor over the circle in the box to view the next level of strength you can reach. You can click the Improve Your Profile Strength link for a guided tour that’ll guide you through adding content to your profile.
If you’ve reached the maximum strength, you’ll have the option to share your profile on Facebook or Twitter.