On some forms you may see electronic signature areas depending on administrator preferences and the way the forms are programmed by Laser App:
Signature controls generally have two states (signed and unsigned):
If your organization is using a Remote Signing Authority clicking a signature with the Sign Here state will open a dialog requesting (at minimum) the User Name and Email.
If your organization is using Basic Electronic Signatures the user will be presented with a dialog to enter their name and (using a mouse or stylus) scribble their signature.