When one is kind, does the person know it? I can see it on other people how kind they are. A smile. A hello. A hug. A conversation.
Write about a random act of kindness you’ve done for someone.
Be or be not. Do or do not. One cannot elevate oneself as being kind.
Photographs and Memories 
Do or not do. There is no try.–Yoda
This is the way – Mandolorian
Don’t mess with us–me. 😄
Kindness can be shown in many ways. I think most people are decent good people and therefore basically kind, and maybe as you say, they don’t realize it. The same also can be said if one is mean. Do they know they are mean and being hurtful to others?
I don’t know.