asterroc | Google+ privacy hints (Reply)

Hide your Circles (friends groups) via this link, or
* Go to View Profile (in upper right)
* Edit Profile (blue button)
* Click on the text "In XXX's Circles" (in the lower left) and un/check appropriate things

Change privacy levels for information
* Create and populate circles (friends groups)
* Go to View Profile (in upper right)
* Edit Profile (blue button)
* About (text in the middle)
* Click on the thing you want to restrict viewing on, such as Education
* For "who can see this?" click the dropdown choice "Custom" (or something else)
* Add the Circles (or individuals) you want to be able to see this
* Not all fields can be customized, for example your name is visible to everyone and this cannot be changed

Full Name?
Everyone you come into contact with through friends of friends of friends can see your full name. (For example, I just started a "Hanging Out". ZMcD joined it, and invited a few friends. I could see their full names.) The same full name is used in all Google services tied to the same account. Consider using a pseudonym that you don't mind your boss knowing, or using initials only. (ZMcD's friends could only see my name as "A S" since that's what I have as my full name.)

Sharing and Resharing
When you create a post or reshare someone else's, make sure to pick the circles or individuals you want to share it with. If you don't want people to reshare your post, after clicking the green Share button, click the little down arrow in the upper right and pick "Disable reshare" if that's what you want.

(Source for a few of these tips.)