Baffled by choosing keywords for your LinkedIn Profile HEADLINE?

Many people are flummoxed when it comes to choosing a LinkedIn profile headline. What keywords should they include? How do you get that up and down symbol ( | )? (Hit shift and the backslash key.) Is it more important to have keywords or a Tagline / Unique Selling Proposition (USP)?
This article will mainly address the last question: Keywords or USP? The answer to the question depends on your main goal with your LinkedIn profile.