I don’t think I’ve seen or sensed a ghost since I was a child, but I certainly believe in them.
My favorite instance of seeing a ghost is a story about my fiance as a child. He used to have an “imaginary friend” who was an older man. After a few weeks of having this friend, his mom asked him what his friend looked like, etc. When he described the man, it was a dead ringer for her father who had passed away when she was 10 years old. My fiance told her that the man was always around watching him and telling him that he was proud. I honestly believe that this was her father checking in to see how his little girl’s life had turned out and to let her know that he loved her and was proud of her.