Got this in my mailbox. It's a set of questions designed to indicate the possible presence of symptoms of a stroke. It's a set of four tasks you can have someone perform. If someone is acting strangely, you can use these to highlight possible symptoms of a stroke. Of course, it's not a definite answer, but it should help to tell whether that person should see a doctor or go to the hospital right away.
These four tasks/questions are:
Talk: have the person speak a simple sentence.
Laugh: have the person laugh out loud (tell a joke or let them watch a funny show).
Arms up: have the person put up both of their arms simultaneously.