LinkedIn can be intimidating if you haven't used it at all or had much experience with it. Even if you have, the experience of trying to update or revamp it can be stressful, much like writing a resume. Knowing which sections matter the most for recruiter and employer searches is important. You also need to know how to develop content to maximize your impact in the space available.
If you're looking to be found, the first thing to check in your profile is that your contact information is visible. Include your email address and anywhere else you'd like to be found (Twitter, Facebook, blog or website) to the contact information section of your profile. If you don't, you may miss out on opportunities.