The social buttons (specifically the G+ button) has problems with RokBooster so I want to add an exception for it. But first I need to know where those files are hidden!

Does anyone know?

this may work
Search "google" (5 hits in 1 files)
C:\a\K2SVN\K2_v2.6.2\components\com_k2\templates\default\item.php (5 hits)
Line 302: <?php if($this->item->params->get('itemTwitterButton',1) || $this->item->params->get('itemFacebookButton',1) || $this->item->params->get('itemGooglePlusOneButton',1)): ?>
Line 333: <?php if($this->item->params->get('itemGooglePlusOneButton',1)): ?>
Line 334: <!-- Google +1 Button -->
Line 335: <div class="itemGooglePlusOneButton">
Line 341: po.src = 'apis.google.com/js/plusone.js';