Select the Contacts that you wish to email from the Results list, and click Send Direct Email:
A window will open, select the email template to use. I've selected a personal email template called Service Contract not renewed that was created in a previous blog. Click Send to send the emails. Careful! You will not have a chance to preview the emails.
However, you can look at the email messages using Advanced Find:
Select the Message to see what was sent (pending send in this case, as AAAlice doesn't have a valid email address :)
and that's it!