Users cannot find the way to key in information during registration

Many users cannot find the way to key in information during registration.

With a tracking script, we can see that users just click other places of page rather than the labels or fields of the form to continue.

We consider HTML5 to implement an auto-focus feature making users able to type without selecting fields, but not all browsers support this feature. However actually many services don't use this feature. (e.g. https://www.evernote.com/Registration.action).

Updated

Take one user for example, he clicks 20 times on the page and the action is valid in 10 times, that is, he just types in to continue. However, he just keeps clicking and finally left.

Do you have any suggestion?

Thank you for your help.