Semi-shade or bright light. Keep well away from direct sunlight. Water sparingly in winter. For the rest of the year water thoroughly. Moist air is necessary.
Mist leaves regularly, but never use a coarse spray.
Surround pot with damp peat. In spring or summer pot up basal shoots with a few leaves and roots attached. Air layering is an alternative. The air is too cool or there is a cold draught. Mealy bugs at the base of the leaf stalks can be a serious problem - so can red spider mite if the light is too bright.