Potted Azalea: indoor plant. The secret to keeping a plant in bloom for many weeks and capable of coming back into flower the following year is to keep it cool, brightly lit and wet (not just moist).
Bright, direct sunlight. Azaleas do well in an area with partial shade and wind protection.
Keep the soil moist, but do not overwater. Azaleas actually prefer the occasional dunking in water (pot and all!), but just do not let the soil dry out. Water thoroughly when the top soil begins to dry. Maintain adequate humidity by occasionally misting or growing them on a humidity tray.