So ...
Basically, the plugin will allow you to display pre-defined reaction buttons in your posts. As a result, the reader will be able to interact with you easier, without the hassle of writing a whole comment.
Upon activation, go to Settings => Reaction Buttons to access the plugin configuration page:
First of all, you need to check the "Show Reaction Buttons" checkbox to actually activate the plugin.
Next, you'll have to choose where you want the buttons to appear. Also, you can customize the text that will be displayed before the buttons and of course, the button labels you want to use. The default labels are "Awesome", "Interesting", "Useful", "Boring" and "Sucks" ...
And you'll see a bunch of other - very straightforward - options ...
OK. Now let's see the result ...