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For me it's people who believe in astrology but the two always seem to intersect anyway. I had a roommate in university who genuinely believed parts of the house were haunted because she "felt a presence" there. She was also really into astrology to the point of having to mention it all the time whenever someone had a certain behaviour she thought was associated with a zodiac sign.
Funnily enough she was studying Psychology
Talking to people who believe in ghosts