I welcome all riders by first name, treating them as if they were friends or neighbors. Similar to what was said their response sets the tone for continuous conversation or music w/o convo. But I work for my stars. I provide water, candies, tissues, wipes, handsanatizer, and a sign reminds them to buckle up, tips are optional, not required, but appreciated…I end with encourage positive feed back like …” I appreciate you using Uber…I’ll split 10 stars with you … 5 for you and 5 for me”…usually works. Regardless of race, financial class, religious affiliation. Learn to adapt your personality with great day attitude, and flexible with empathy and sympathy…as the each ride is special.