Would you prefer that your vegan friends don't see that photo of you eating a giant steak? Is your love for Desperate Housewives something you would rather not share with your fraternity brothers? You can establish a Limited Profile that will create a limited view of your Facebook profile for selected people. These individuals will not be informed that they are not able to see certain profile features.
From the Privacy page, simply follow the "Limited Profile Settings" link. You will be taken to a page where you can decide what profile information you wish to include in your Limited Profile (the default is to include everything). As you check and uncheck boxes, you can get a sense for what your Limited Profile will look like. After you have established your Limited Profile, you can make a list of people who will view your profile this way. Just use the search tool at the bottom of the Privacy page under "Limited Profile."