God, it's wild. I had a lady the other day stopped me in the grocery store to have a conversation and I didn't want to be rude and tell her that I had no idea who she was because it seemed like she knew me and I just suck at remembering people, but after about 20 minutes of mostly inane drivel I apologize and told her I couldn't remember where I knew her from and she just straight up told me that we never met before but I had a friendly face so she felt like chatting since she had nowhere better to be.