I write about the people I know and the people I see around me. I realized that I am observant even when busy talking or chatting.
I have been accused of reaching conclusions about people without benefit of their input. I would say that that is my creative juices creating a person that does not exist based on what they say and what they do in a few instances giving me ample subject for what I want to write.
People are interesting to watch and listen to. When someone is relating to another, you can glean lots of information about their beliefs and their ethics. From the way they treat the person they are with you can conclude a great deal about their life and their ways of doing things …. to others.