Google+ attempts to make sharing on the Internet just like sharing in real life.
With Circles, sharing stuff with the right people is simple. Drag people into the same real-life social circles you already have, such as 'family,' 'friends,' 'coworkers,' 'basketball team,' 'classmates,' and more and when you share something, select who you'd like to see it, and click share.
The Stream is where you write what's on your mind, and where you choose which (or all) of your Circles to share with. Share text, photos, videos, links, or location markers. Whatever you choose to share will appear in the stream.
Hangouts are the place to meet others online. It's a way to let others know you don't mind 'hanging out.' Its here that you can use live video chat or text to meet with others who also wanting to 'hang out.'
Chat gives you the option of video or text chatting with others online. All you have to do is type a contacts' name into the search box and click 'add to chat,' and you're chatting!
Other Google+ features include; Photos and videos to share with those most interested, Profiles allow you to view valuable information about your contacts, Games give you the option of entertainment, and Search, Google+ bar, +1's, and Mobile give you information and organization at your fingertips.
Visit the Google+ playlist on YouTube for videos and tutorials for using all of these features and more.
