Enable a trigger when user doesn't do/click on anything

Hi, Digital. 

Thank you for reaching out!

There are a few ways to achieve what you're looking for, and I'm hoping members of the community will share their suggestions, but here's mine:

• Create a True/False variable (let's call it Clicked)
• Create a layer (we'll call it 10 seconds) with the pop-up message you want to show the user.
• Add a trigger to show the layer 10 seconds when the timeline reaches 10 seconds if the variable Clicked is False. 

• Add a trigger to each of your cards, so the variable clicked turns True when the card is clicked.

I am attaching a sample .story file here with the above suggestion.

Let me know if this works!