The FAST Program Stroke Signs 

One of the first things you may notice about a stroke victim is that his or her face will become limp or numb. Ask the person to try to smile and watch the corners of his or her mouth. If only one side raises and he or she is unable to raise the other corner, this is one sign the individual may be suffering a stroke. 

Difficulty speaking is another warning sign something is amiss. Ask the victim to repeat a simple sentence like, "The ball is red." If his or her speech is slurred, words are omitted or he or she is only half-forming words, this may be another indication that she is suffering a stroke. 

Finally, dexterity may suffer in one arm, typically the left arm, so that the victim cannot raise and hold it up completely. Ask the person if either arm is numb or weak, have him or her raise both arms and watch to see if one droops or cannot be raised as far as the other arm.