If air conditioning is not available, stay on the lowest floor, out of the sunshine. Remember, electric fans do not cool the air, but they do help sweat evaporate, which cools your body. Light colors will reflect away some of the sun's energy. Your body needs water to keep cool. Drink plenty of fluids even if you do not feel thirsty.
Water is the safest liquid to drink during heat emergencies.
They can make you feel good briefly, but make the heat's effects on your body worse. This is especially true about beer, which actually dehydrates the body. Avoid foods that are high in protein, which increase metabolic heat. Signals of Heat Emergencies . . . Least serious of all heat illnesses.