It is very easy. There are multiple methods. Two of them are the use of the robots.txt and the no follow meta tag. Some use htaccess files.
While I have used the robots.txt exclusively because I have used it to exclude an entire domain, the meta tag is the easiest for excluding individual pages.
There is an article you could check out at
http://en.wikipedia.org/wiki/Noindex (Wikipedia). You simply put this in your header on each page you do not want to be indexed by google or others with their robots:
<meta name="robots" content="noindex" />
There are some articles around saying that this method is not always effective but google says they still follow it as do major search engines. So for your concern, I think you are not thinking about spam robot searches for email addresses, etc., so this would be quick, easy, and meet your need.