In the lower right hand corner you'll find an 'About Me' box
(unless you've changed its default position in layout)
If you click on the g+ (Google Plus) or 'View my complete profile'
links, you'll be taken to the blog's profile page
The profile page defaults to 'posts'.
You'll see a three column round up of all the blog's posts.
This view of the blog is another way - besides 'blog archive' - to find things.
Here you'll find opportunities to share information, including:
Each box has an blue edit button lower right
When filling these - Don't give away more information than you really need to
I've decided to give this much information ---> my / the blog's profile
Whilst editing you'll see this top right...
To check what the public sees, click on the down arrow next to 'Yourself'....
This will give you a view of your profile as others will see it.
Always consider what you share - double check everything.