Euphorbia Trigona, also known as African Milk Tree, is easy to care for. They prefer bright indirect sunlight, such as a south facing window.  Since it's a succulent, it doesn't need much water. Let the soil dry between waterings, about every 1-2 weeks depending on your home. Stick your finger in about an inch, if it's damp you can wait on watering, if it's dry you know it's time to water it.