Media settings are pretty quick - first you have sizes here that determine maximum dimensions in pixels when adding an image to the Media Library.
Then you can enable image carousel for displaying galleries you create within posts or pages, and you can also choose a background color right here, between black and white.
Next up Sharing settings are really great since they let you add sharing buttons to your blog and allow your readers to share posts with their friends.
First here you have a list of available services and you can drag and drop them into the box below to enable them like this.
The same way, below are enabled services and if you want to disable one of them, just drag and drop them into the box above.
Next up you can choose a button style: it's can be icon + text, or icon only, or official buttons for example,I will choose that.
And after that you can set Sharing label: says Share this... that sounds just fine.
And finally, the buttons will show up wherever you want them to: front page, posts, pages, media and so on, and I will leave posts only.
Down here you can also include wordpress.com likes and reblogging options and in the end, and decide whether you want comment likes on or off.
When you're done, save changes!
Now when I go to one of my posts, I will see the changes I made at Settings.
I will scroll down I have sharing options right here, reblogging, like, and so on.
And in the comment area instead of Leave a Reply it says Say something. :)