In a video post, Khare said when the tool is available, users will be able to download their contacts and then, under Circles Editor, select Find and Invite. When they see the new Upload Address Book button, they can click on the Select Contacts File. After that, their contacts will appear as tiles that can be dragged and dropped into their Circles.

And on the privacy side, , a Google+ profiles product manager, announced a privacy update on Google+ late Tuesday night based on user feedback.

"Starting later this week, you will be able to set the privacy setting of your gender on your Google+ Profile just as you control other information about yourself," she wrote.

And in a video post, Haugen said she understands that gender can be a sensitive topic, especially on the Internet. "Having gender information makes Google+ more conversational," she noted. "If you decide to make your gender private, we'll use gender-neutral language to describe you whenever someone else... doesn't have permission to see your gender."

For instance, she explained that if Pat decides to keep her gender private, Google+ would alert someone that she has added him to her Circles by saying, "Pat has added you to their Circles."