So ...

Upon activation, go to Settings => Swifty Bar to access the plugin configuration page:

First of all, be sure that the "Disable Bar" option is unchecked!

Next, check the "post" option next to "Show on which post types" in order to display the bar on your posts. If you are using any custom post types, they will be listed here as well.

And you'll have a bunch of other customization options which are self-explanatory. The default options will work well for most of websites, but you can play around with those settings according to your needs.

Next, select the "Enable Modules" tab to enable/disable various sections according to your needs. Simply check the box next to a module, and it will be disabled.

OK. Now let's see the result ...