1.cold Places In Da House 2.the Feeling Like Someone Is Watching U When You are Alone And 3.weird Things Happening In Ur House (dog Barkin Etc Etc.. )

YES , I do believe in the supernatural, I also do believe in spirits, I also believe people (some) are able to see into the future of what will be.
We all also have some form of esp not all of us know how to use it though.
I believe that robert15 has pretty much explained how you can tell.

I think it all depends on how open your mind is. I believe in spirits and there ability to communicate with us. I am a sensitive and I have experienced many unexplained events. As for scientific proof, well skeptics will always find a way to discount it. Try the TAPS website, they have some good studies.

I agree with Rose about creating our own reality. I personally believe in ghosts and that probably has a lot to do with the fact that I have seen them. I think people who believe are more likely to see them, however, I don't believe that if you're a non believer you can't see them. I was around 6 or 7 when I first saw a spirit and that was long before I knew what ghosts were.
Basically, there is no eveidence to say that they do or do not exist, its only people's opinions on the subject.