Simple Go to
1. Blogger Dashboard.
2. Go to Posts.
3. Check the right hand corner of the posts list.
4. Here you can see how many +1 your blog post has recieved.
5. Also if you click on the number you will find individual people who +1ed your post.
Google +1 is gaining more and more significance in the SEO world and if your 50% traffic comes from Google then you must have the +1 button on your website immediately.
Having +1 information can help you understand trends on what kind of people +1 your posts more. Do you know them or not, you can also start thinking of strategies of increasing your Google +1s for your posts. Some of the ways are:
1. Having a +1 button.
2. Other is sharing it on Google+.
3. People can also +1 your posts from Google Search results.
