The admin area of WordPress offers simple way to manage plugins.
I entered Plugins — > Add new in the admin panel of your blog. I was suggested to search through the plugins right in the admin panel of my blog. When looking through the plugins via the admin panel there is an opportunity to install them by just clicking the “install” button next to the name of the plugin.
I was taken to the page containing information about the plugin. I pushed “Install now”.
I entered the data for the FTP connection to my host server in the proper fields.
That’s it! I had to only activate it.