Here we see the model for church growth that the early church used, a pretty far cry from what we see today. 

Devoted to
1. Apostles teaching
2. Fellowship
3. Breaking of bread
4. Prayer

Other attributes of the environment
1. All things in common
2. Use of gifts
3. Worshipping together
4. Meals in homes
5. Received food with glad and generous hearts
6. Praising God
7. Gained favor with all people
8. The Lord kept saving people and adding to thier number