One of the easiest ways to use Facebook is to “like” the things you actually take the time to read, unless of course either you don’t like what you read or you take even longer to post a comment and engage in conversation. Most of the time you’re probably skimming through stuff your friends or the Fan Pages you’ve “liked” are posting.
You might want to consider clicking the like button for those posts. It’s simple, quick, and goes a long way to let people know you’re actually paying attention. This is especially true of Fan Pages because the admins of those pages have access to Facebook Insights, a set of analytics that tells them if they’re reaching their audience or not. Feedback is one of the things that social is all about, most frequently in the form of some kind of engagement, e.g. comments to blogs, re-tweets, etc.
Clicking on the “like” tag is surely one of the best ways to engage with your friends and the brands and stores you care about. Give it a try. You’ll like it!