Michal Ozogan

This plugin will allow visitor to submit they twitter, while thay are commenting your posts. They account will by showed as twitter follow button.
Registred users can add their twitter account in profile administration.
There is also a setting page where you can edit color, size, showing count and language.
Some themes dont’t use function <code><?php comment_form(); ?></code> to show comment form. In this case you have to edit your template. Find comments.php and add
<pre><code><label for="twitter">Twitter</label><input name="twitter" size="30" type="text" value=''/>
</code></pre>
to form.

Twitter follow button in coments

Allow your visitors to add their twitter.

Muneeb

Add the Follow Button to your website to increase engagement and create a lasting connection with your audience.
Using as a Widget
When “Twitter Follow Button Shortcode plugin” is activated a widget is also created with title ‘Twitter Follow Button’ you can use that widget to place follow button on blog sidebars.
Shortcode Syntax 
 [followbutton username=’twitter’ count=’true’ lang=’en’ theme=’light’] 
 
 [followbutton username=’yourusername’]
Other Plugins 
* <a href="http://muneeb.me/wordpress-simple-popup-plugin/" rel="nofollow ugc"> 
WordPress Simple Popup 
</a> 
* <a href="http://muneeb.me/wordpress-coming-soon/" rel="nofollow ugc"> 
WordPress Coming Soon Plugin 
</a>

Twitter Follow Button Shortcode and Widget

Create Twitter follow buttons either by using shortcode or use WordPress widgets to place follow button on your blog sidebars.

Twitter follow button in coments vs Twitter Follow Button Shortcode and Widget