An easy way to remember the signs of a stroke is to think F.A.S.T.
F is for Face drooping. Ask the person to smile. If their face appears uneven or droopy, this may be a sign of stroke.
A is for for Arm weakness. Ask the person to raise both arms. If one arm drops or is weak, this may be a sign of stroke.
S is for Speech difficulty. If the person can not say a simple phrase or their speech is slurred, this may be a sign of a stroke.
T is for Time to call 911. If the person shows symptoms of face drooping, arm weakness or speech difficulty, it is time to call for help. After calling 911, watch the person and take note of when these symptoms began.