How to Create Social Content Locker in Blogger BlogSpot

We all cannot deny the beauty and power of social media and the tons of people that are engaged on social media networks these days.
And if you have highly relevant and quality contents, but quite to be widely shared by itself, then you should definitely use the Social Share Content Locker or Share to Unlock Content, to lock your contents until your reader unlocks it by promoting it on social media sites.
If you are not familiar with What Share to Unlock Content or Social Content Locker is, then let me describe it briefly.