I finally figured out how to customize "reactions" for the posts. These are a way for readers to leave a little feedback without necessarily commenting. I've changed them to "like", "interesting", and "I'm going to try this". Do you have any other ideas for reaction options? Please comment if you do!
Oh, and if you are a blogger and want to know how... let's see... Template -> Customize -> Layout-> Edit (middle of page under "blog posts"). Scroll down to reactions, and click edit again.