Rhapis Palms like lots of bright but only indirect sunlight. Make sure the sun's rays don't fall on it at any time during the day.
The soil must stay moist at all times, unlike many other Palm species. When you water, pour it in slowly over the entire surface until some trickles through the drain holes of the nursery pot. Avoid letting that pot sit in water, but always water thoroughly as soon as the surface of the soil feels almost dry.