Here's a great article from John at RSG. If you have read Stephen Covey's The 7 Habits of Highly Effective People, you know how important these personality ethics or behaviors are.
Here is his take on the habits every rideshare driver should strive to have.
2. Curiosity and Respect for All People
3. Ability to Focus on the Goal – Safe Delivery
4. Flexibility / Tolerance
5. A Good Sense of Humor
6. Attention to Detail