Follow this guide to show the popup when the user is without activity (without moving the mouse) on your page for x seconds.
Go to: “Triggers” > On User Inactivity.
Finally, enable the option “Status”.
Show the popup only the first time.
Enable the cookie to display the popup only once, once the user closes the popup, they will not see it again until the cookie expires.
Live Example: To run the popup like the following image just try not to move the mouse for about 7 seconds.