Birds of Paradise enjoy moist (but not soggy) soil, and being allowed to dry out slightly between waterings. Try not to let the soil dry completely through the pot, but also avoid overwatering. Allow the top 2" - 3" of the soil to become dry between waterings, but below that should remain moist.
Place your indoor bird of paradise in a spot where it will get the most light. The only exception is if it's very hot, such as in a sun room; in that case, bright, indirect light is best. If your plant's leaves are yellowing, try increasing the amount of light exposure.