Crazy Egg provides you with Heat Mapping tools that lets you visualize your visitors’ clicks on your website. You need to register for that tool and pay $9 to $99 according to the pack you choose.
Another powerful tool is Clickheat. It’s free and Open Source. It is easy to configure and will take you 30 seconds of implementation.
You simply upload the extracted clickheat directory to the root of your website. Then follow the configuration wizard. You’ll have to set the domain names that are allowed to trigger a clickheat indexation and to set a login-password to get to the results. Then login to http://www.mydomain.com/clickheat/ and generate the javascript code to be pasted in the head of your index.php file.
After some visitors’ clicks, you’ll get the following results :