JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Do you mean like hint example? If yes, click on it's gear icon, then on "Edit properties":
Then click on ADVANCED, and type the example in the place holder box:
If what you want is to prepopulate users information, here is how: http://apps.jotform.com/app/field_prepopulator
If this is not what you mean, please provide more details of what you want to accomplish, we will be glad to assist you.