Which is why - to evaluate the enthusiasm in my content - I imagine myself using that exact article as a speech in front of a live audience. Later, I also picture a celebrity addressing his fan base or making an advertisement using the exact same article. These two acts, very explicitly, give you a measure of the "life" in your article. If your work is well written then it will work out well even for presentations.
You have to appraise whether your content is sounding like a person talking about something or a robot just blabbering the data fed to it. Writing is nothing but communicating and the only reason clients pay high money to writers is to get that friendliness in their content so that it comes across easy to understand. A writer always has to remember that his content - especially online - can reach an audience full of diversity and each and every one of them should be able to "get it."
Will it look good if you used that content for a presentation or will it embarrass you as a result of its blandness? Will it sound good to you if you were in the audience listening to your favorite celebrity giving that presentation or will it make you say "what was he thinking?"
Assess your content from both a listener's and a speaker's point of view and you will have very well examined the "X factor" of your writing.