Surveys can be sent to Salesforce and/or external recipients: email, Contacts, Users, and/or Leads.
1. After adding the recipients, press the 'Send' button
2. Select the option you want and press 'Send' or press 'Cancel' to go back
NOTE: Make sure you set up Sites if some/all the recipients are recipients external to Salesforce. Go to the Site Configuration tutorial for more info.