Most of them come from tropical area and prefer sunny and warm room temperature(24 degrees celcius).
Keep them away from heaters in winter because the air is to dry.
Watering should be done once a week, if the soil is dry or the pot is light weight when you lift it.
Make sure there is no water sitting at the bottom of the pot , to avoid infestations of insects, diseases and other pests that thrives in those conditions.
Fertilize with a 20-20-20 type will help them to produce and keep nice leaves. Follow manufacturer intructions. In winter, stop the fertilization because most of them are dormant and start again around March.