To care for a Philodendron Micans, provide bright, indirect light, water when the top inch of soil is dry, maintain average household humidity, and fertilize during the growing season. 
Here's a more detailed guide:
Light:
Philodendrons thrive in bright, indirect sunlight.
Avoid direct sunlight, which can scorch the leaves.
If the plant gets too little light, it can lead to smaller leaves and leggy growth.
Brighter rooms will help it produce more leaves. 
Watering:
Water when the top inch of soil feels dry to the touch. 
Overwatering can lead to root rot, so ensure proper drainage. 
Allow the top 1-2 inches of soil to dry between waterings, especially in winter. 
Humidity:
Philodendrons enjoy high humidity, but can adapt to average household humidity levels.
For added humidity, mist the leaves regularly, place a humidifier nearby, or set the plant on a pebble tray filled with water.