Mh Mehedi

Don’t Need to do anything. Just Active it and go any of your posts. You can see the Twitter and facebook 
Share button. From any posts anyone can share and twite.
<h3>Further Information</h3>
More information, the latest updates can be found at
http://mhmehedi.com
or contact with me if you have any question
http://mhmehedi.com/contact-me

Mehedi’s Social Share

This plugin helps you to share your posts automatically at facebook and twitter.

sourcloud

Lightweight twitter share button for every post.
This plugin does one thing, and that thing is to add the twitter share button to the end of each of your posts. This change happens on the fly, so if you deactivate or uninstall this plugin, the feature goes away.
Uses post title + permalink.

SourTweet

This plugin adds the twitter share button to each post. That is all. No extra crap.

Mehedi’s Social Share vs SourTweet