If you don’t have Google Plus Page than you can create it and connect it with your blog. Default setting is connected with your Google Plus profile manually you can change it.
How to Connect Your Blogger blog with Google Plus?
Google is frequently improving their services for blogger user. Next update for blogger user is to connect your Google Plus Page with blogger blog. After involving in social networking site Google Plus try to capture all market share in social networking site. and it’s on the way.Blogger introduce this feature for the purpose of build up relation with reader and make them to keep in touch with your blog. blogger desk-board have added tab for the same. Its advisable for every blogger to adopt this feature for owned blog.
For your guideline i have added screenshot for the same.