Contact Form Editing for dummies

Hello,

I’m using highend theme for the web site of my company.

I did everything by myself, using all templates from HB. I’m a dummy user. And I don’t know how to edit codes.

So, I want to change the contact fields language to Portuguese.

See the attached file.

and the url is: http://excelia.com.br/v2/index.php/contact/