1. The lock screen or background on their phone
  2. If they hold open the door for someone coming in or out
  3. How they treat their waiters, waitresses, and strangers
  4. The way they drive
    In a rush? Calmly without a care in the world? Windows down? Windows shut with the air condition on? Blasting music? Gentle hum of music?
  5. Facial expressions and mood changes