How can I use LinkedIn to job search w/out being found out by my current co-workers/boss who are on LinkedIn?

Question From User - Answers in Comments.

I just signed up for LinkedIn and was hoping to use it to job search. After reading some primers on it, though, it seems that to use it efficiently for job seeking, you might inadvertedly give away to someone at your current workplace that you're looking for a job elsewhere. They'd just have to check your profile. They can even look at the questions you've asked.

How can I hide the fact that I'm job searching from current co-workers, or worse, my boss(!) when using LinkedIn?

Would really appreciate if someone could help me out! Thanks!