Step 1: First, login Gmail and create Google + account (ex: /+ThànhNguyễnTrọngIT);
Step 2: Click Profile menu and click About on the right;
Step 3: Scroll down to the bottom to find the Story section and click on the pen icon to edit the content;
Step 4: In the Introduction section, type the keyword to create a backlink and click on the link insert icon to put the link, then click Ok.
So now you have a good dofollow backlink!
Hope the article How to create backlink dofollow on Google + will help you in your SEO website.
Good luck!