Blogger has released a cool new feature that lets readers offer quick responses. It's called Reactions, and it allows bloggers to create a variety of responses for their readers to choose. One possible implementation of the feature looks like this:
You're not limited to "LOL" or "Fail." You can set your own annotations:
To use the feature, go to Layout > Page Elements. Click the "Edit" link under the Blog Posts element. Check the Reactions box and enter words, separated by a comma. Hit Save and you're ready to go.