Techniques for building a usable registration form can be a major factor towards bringing in new users. When you've got an overly complicated form it can scare away so many first time visitors. But a great technique for keeping these people around is coding form hints into the layout. In this tutorial I want to demonstrate how we can build such an interface with CSS3 and jQuery. We can embed hidden form tips which only display when the user has focused on a particular field. These hints can be used to denote syntax, such as the required length of usernames or passwords. But it's a great usability tactic which livens up even the most dull websites.