Great post by Broncobytes
Browse YouTube through Google+. Click the YouTube tag in the upper-right of your screen.
See What Another Google+ User Sees When Viewing Your Profile. Click the Profile icon at top-center of the screen, then type the person’s name in the ‘View profile as…’ text box.
Mute a Post. Click the down-arrow at the top-right of any post that isn’t your own, and select Mute this post. This will keep the post from reappearing each time someone comments on it.
Disable comments. Click the down-arrow at the top-right of any of your own posts, then select Disable comments. Doing this will keep people from commenting on that particular post.
Lock Your Post. Click the down-arrow at the top-right of any of your own posts, then select Lock this post. When you click this, it locks that post to your profile. It cannot be shared by others.
Share an Entire Circle. Click the Circle tab at the top of the screen, then click the Circle you would like to share. The Circle will then fade to gray and show more options. Select Share and decide who to share it with, then add your comments like a normal post.
Add People from Suggestions. Google+ suggests people to Circles in a list at the right labeled “Suggestions.” Add as many as you’d like!
Invite Friends to Google+. Under the list of ‘Suggested’ at the right is an option to invite friends. Click Invite friends and type in the email addresses of those you’d like to invite.
Control Who’s Included in ‘Public’ When You Share. To do this, click the Gear icon at the top-right and select Google+ settings. Locate ‘Who can interact with you and your posts’ under ‘Who can comment on your public posts?’ Select this and choose your preference.
Change How and What You Receive through Notifications. Click the Gear icon, then select Google+ settings. Scroll down under ‘Receive notifications’ to configure your notification settings.
Save Your Profile, Including Circles, Pictures, and Videos. Click the Gear icon, then select Google+ settings > Data Liberation.
Connect Your Twitter and Facebook Accounts to Google+. Click the Gear icon, then select Google+ settings. Click Account overview at left and find ‘Connected accounts.’
Make a Google+ Page. It’s different then a personal profile, but you can manage it all the same! Click Create a Google+ page at right and begin!
Add a Manager to a Google+ Page. From the Google+ Page in question, click the Gear icon, select Google+ settings, and select Managers from the menu at right. Enter in one or more (up to 50) email addresses under ‘Add managers by email.’
Promote your Google+ Page. From the Google+ Page in question, click Spread the word at right.
Add People to a Google+ Page VIP List for a Google+ Page. Under Circles, select all the people you’d like to be VIP’s. Click and drag the bundle of names to the default circle labeled ‘VIP.’
Play a Sound When a New Chat Message Arrives. Click the down-arrow next to your chat status, and then select Settings. Check the box next to ‘Sounds’ (requires Flash).
Customize Who Can Chat with You. Click the arrow to the right of Chat > Privacy settings. Select the drop-down box and click Custom.
Make Your Chat Status Invisible. Instead of being online, offline, or busy, simple set your status as “Invisible.” Click your status below Chat (it will either read “Available” or “Busy”). Then select Invisible. You can go visible any time you’d like.
View a List of All Your +1’s. Click the Profile button at the top, then click +1’s under your profile name.
Search For a Name in Your Circles. Click the Circles button at the top. Type in a name you’re looking for in the search box at the far-right.
Upload Pictures to Google+. Click the Photo tab at the top-center (next to the Profile tab). Then select Upload New Photos. You can name and create photo albums.
Add a Short Description of Yourself Under Your Name. Click the Profile button, then click Edit Profile at top-right. Add a brief description of yourself next to “Introduction” to set you apart from others.
See Your Updates Instantly. When logged into your Google account, the menu bar appears at the top Google applications. The account name is shown at the right. When there are updates to your Google+ account (such as comments), a red box will show next to the name, with the number of updates.
Add a Profile Picture. Click the Profile button at top-center, then click Edit Profile. Under the default profile picture, click Change photo. Be sure the photo you want is saved in an easy-to-find location on your computer.
See Photos from Your Circles. Click the Photos button at top-center, and then select Photos from your circles from the menu at left.
Lock Your Picture Albums. Click the Photos button at top-center, and then select Your albums from the menu at left. Click the album you’d like to lock, and click Limited (Locked) next to ‘Visible to’ just above the pictures. Click the checkbox next to the lock icon and click Save.
Use Basic Photo Editing Tools on Your Pictures. Click the Photos button at top-center, and then select Your albums from the menu at left. Find the picture you’d like to edit, then select Creative Kit at the top-left of the window.
Delete a Photo. Click the Photos button at top-center, and then find the picture you’d like to delete. Click on the photo, and click Options at the bottom left. Select Delete from the pop-up menu.
Sort People in Your Circles by their First Name. Click the Circle button at top-center, and then select the drop-down menu by ‘Sort by’ at top-left. Select First name to sort.
Have Your Profile or Page Show Up in Google Search Results. Click the Profile button at top-center, then click Edit Profile at top-right. Scroll down to the bottom of the page and select Profile discovery. Check the box, and click Save.
Prevent Others from Downloading Your Pictures. Click the Gear icon at the top-right and select Google+ settings. Select Google+ at left, and scroll all the way down to ‘Photos.’ Select the appropriate option.
Chat Off the Record. Chatting off the record disables Google’s ability to save a chat conversation to your account. While chatting, click Actions > Go off the record.
Navigate Quickly from Post to Post. When looking through your stream of posts, use J and K on your keyboard to scroll up and down from post to post.
Mention Someone Specifically in a Post. To mention someone in a post (along with a link to their page), simply add ‘@’ or ‘+’ before their name.