I talk to myself allllll the time.
It's not like I have an dialogue were I answer questions that I ask myself or anything and have a full on conversation with myself. I think it's just me thinking aloud. I have plenty of other weird quirks but that's one that's really transparent because sometimes I forget and do it in public! I can't help it. I used to be embarrassed but I'm over it now.
I also love being in the dark.
My dad used to call me his little vampire. I think I must have excellent night vision or something because people are always walking into rooms that I am and say "Can you see anything...?" as they turn on the light. However, it's never really pitch black dark just more dim than most people prefer. I do like it pitch black when I sleep though!