If you are on hand when someone having a heart attack, call your local medical emergency number (911 in the US) immediately. If the victim is not allergic to aspirin, have them chew and swallow an aspirin, if it is readily available. If the victim is awake and breathing, have them drink a glass of water with a teaspoon of cayenne pepper in it. If he or she is not breathing or the heart has stopped beating (you don’t feel a pulse), perform CPR if you know how. If an automated external defibrillator (AED) is available, follow the instructions while performing CPR on the victim. If you are unable to help in any other way, hold the person’s left pinkie finger with your entire left hand and put the finger pads of your right hand in between their shoulder blades along their spine. Hold them in this way until help arrives.