I am browsing suggested people and adding them to my circles, but how do I know whether they are using Google+?
I don't want to add someone who is not a Google+ user or at least, I would like to know that so I can invite them.
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Sign up to join this communityI am browsing suggested people and adding them to my circles, but how do I know whether they are using Google+?
I don't want to add someone who is not a Google+ user or at least, I would like to know that so I can invite them.
When you add him in your list, if you only see the mail icon this mean your contact don't have Google+.
By the way if you click on the icon of a contact without an account, it will invite you to share by email or send (eventually) an invite.
In addition to what M'vy said...
When you're looking at your Circles page at the "Find and invite" section, the list of suggested people is broken down into two lists:
On the "suggestions" list on the main page (unlike everywhere else on google+) there is no envelope to denote which people are not on google+. Instead you can tell the difference by scrolling over the person's name and seeing if it is a link to their profile.
Warning: the text of their name will be blue whether or not it is a link!