We used to live in a house that was right on the cemetery. But since this is S.FL it was a flat cemetery with no statues or ornate headstones like you typically see. The other weird part is, the former owners of the house (husband and wife) both died in their 50's while still living there and were buried in that very cemetery that was behind the home. You could see their graves from the fence. And my grandfather was buried there as well, and yes you could see his grave too.
Anyway, I have never been scared of these things and still am not. I, honest-to-goodness, believe that they are forms of energy and sometimes don't realize they're dead. There would be nights and days where everything just SEEMED weird in the house, even if you never saw anything. I sometimes smelled odors that didn't belong to anyone of us living there, like old lady's perfume or strange spices. The day we moved in I saw a man walking passed the window in the bathroom, just straight passed in MY yard. So I was banged on the window like, "Hey, what are you doing dude?" but he didn't turn back. I opened the window to look out and he was gone. I ran outside to see if he was still in my yard, no one, nothing.
I once came home from work and heard talking in the hallway, but I couldn't make out what they were saying, thought maybe it was my mom talking from her room. I went down the hallway and there was no one there. I looked into the bedrooms and everyone was sound asleep, including my mom. I went into the kitchen and heard it again. No one was there. It was almost like buzzing. Hard to explain.
The most strange thing that happened there, besides the number of dreams I had of being possessed, was the time I was in my "office" on the computer. I saw someone walk passed the door, quickly, really close to the doorway and without saying anything. It was about my b/f's height so I figured it was him and I said, "hey". No reply. I was like, "Hellooooooooooooooo". Still nothing. I heard something tap on the glass door in the direction he was headed. I got up, 'cause then I was thinking he was mad at me. No one was there, a vertical blind was moving and my boyfriend had been in the shower the whole time. WTH did I see? It was dark and had a human shape to him.
Personal experience: I lost my ex boyfriend back in 1999. I had just found out and was sobbing for a really long time. While crying, I heard someone tell me, "shhhhhhhhh". So I looked to see who it was. No one, of course. I thought I was losing it since I'd been crying for so long. I was kind of weirded out, but still thought it was me. I started crying again, and it happened again. After that I was too scared to cry anymore and went to sleep :/ This could have easily been written off if the following hadn't happened a few years later. The room I was crying in, eventually became my son's room. He was crying 'cause I'd punished him and sent him to his room. His crying picked up so I went in there to see what was up. He said - in his words, "I was crying and someone told me to Shhhhh". *twilight zone*
My b/f and I were sitting in the backyard facing the cemetery one night while he was having a smoke. The yard is gigantic, mind you so it's not like we were admiring plots or anything. The chainlink fence was overgrown with foliage so there was nothing to see really. We were just chilling and something enormous ran something or itself all along the fence fast as hell and it made a really loud noise. We looked at each other like, "ummm...hold me?" There was nothing on OUR side of the fence, but we couldn't see the other side. It did it again and we just went inside. I didn't even want to know.
The neighbors used to have a dog, that I swear barked ALL NIGHT LONG, AT something. Like it would be facing our fence and barking its head off at what appeared to be nothing. We eventually threw a wooden fence up LOL.
When my son was a baby and he'd wake in the night, I'd go in to rock him and sometimes he'd be staring at the wall, just over my shoulder and giggling. If there were some kind of spirits in that house, they had to have been good.
Other than that dark person, and the guy outside the window, I haven't actually seen an actual "ghost" how you'd expect to see one. But I've been visited many times in dreams by people I know who've passed on.
The house we live in now is freaky too, but nowhere near as weird as the one on the cemetery. I think most of the time, people were just passing through that house. There was never anything regular about the incidents except for my son being entertained during our nighttime cuddling.