When you see a picture of a face:
If the face is NOT drooping, hit this button:
No symptom button
You can also use these: 
Swipe left
Left arrow
If the face IS drooping, hit this button:
Symptom button
You can also use these: 
Swipe right
Right arrow
Does one side of their face droop or is it numb?
Ask them to smile.
Now that you can identify face drooping, call 911 RIGHT AWAY!
