Nevertheless, luckily, I have unintentionally re-activated this plus one feature in Xaivierchia.blogspot.com. For those who have same experience as mine, all you need to do is copy the code from the Google website (Link is provided below), and then paste it in your HTML template just after the < Head >.
After that, please do not forget to click on the "Show Share Buttons" as well.
In addition, from the Google provided website:
Four +1 designs are available to suit your need.
Besides, if you want to put this +1 button in other place, you can simply copy the second provided copy, that is, the code below "Place this tag where you want the +1 button to render" (Please refer to the Google website above), and paste it to your desired place.
That's all for today. More fascinating articles and sharing will be updated from time to time in Xaivier Blog. So, you are welcome to subscribe our feed, look at our sitemap or simply visit our Homepage.
Written by: Xaivier Chia
Additional Source: +1 Introduction