Otherwide those are the placeholders, you can easily change them from footer.php.
open footer.php and scroll down at the end of the page.
// PLACEHOLDERS
$('#yourName, #authorName, #comment_form #authorName, #s_name').attr('placeholder', '<?php echo osc_esc_js(__('Your name or nick...', 'veronika')); ?>');
$('#yourEmail, #authorEmail, #comment_form #authorEmail, #s_email').attr('placeholder', '<?php echo osc_esc_js(__('Mail to contact you...', 'veronika')); ?>');
$('#login #email').attr('placeholder', '<?php echo osc_esc_js(__('Registration email...', 'veronika')); ?>');
$('#login #password').attr('placeholder', '<?php echo osc_esc_js(__('Password...', 'veronika')); ?>');
$('#register #s_password').attr('placeholder', '<?php echo osc_esc_js(__('At least 6 characters...', 'veronika')); ?>');
$('#register #s_password2').attr('placeholder', '<?php echo osc_esc_js(__('Repeat password...', 'veronika')); ?>');
$('#phoneNumber').attr('placeholder', '<?php echo osc_esc_js(__('Phone to call you...', 'veronika')); ?>');
$('#s_phone_mobile').attr('placeholder', '<?php echo osc_esc_js(__('Mobile phone to call you...', 'veronika')); ?>');
$('#s_phone_land').attr('placeholder', '<?php echo osc_esc_js(__('Land phone to call you...', 'veronika')); ?>');
etc
etc
etc