One way to increase your Twitter followers is by regularly updating your Twitter. When creating, publishing, or editing your WordPress post, you should update your Twitter. The easiest way to do this is by using a plugin. Here’s a great twitter update plugin.
The Twitter Updater automatically sends a Twitter status update to your Twitter account when you create, publish, or edit your WordPress post. You can specify the text for the updates, and also have the option to turn the auto update on/off for the different post actions in the admin panel.