Place the following script anywhere in your website. Make sure that e-satisfaction library is loaded.
"visitor": true, // true for visitor, false for logged in user
"region": "The region of your visitor/customer"
"page": "The page where the questionnaire is displayed",
"mobile": true // true for mobile, false for desktop,
The above script refers to example metadata. You should change the values to the ones that correspond to your case.
You will have first to create your application metadata through your dashboard, in the section Application Metadata, and then use them during the integration process.