If you really want to feel like you have spoken to a ghost, then he is what you do, trust me, it is very eerie and scary.
You must locate a dense wooded area in which you can go into at night. You mustn't be able to hear anything but the night noises, no cars, no people that have a house close to the forest, and no lights coming from near by houses. Once that is done, wait till dark falls, mostly start at sunset and wait, eat before you go, and take some water bottles. Food will attract animals, and it won't work. Bring something to lie down or sit on. Then just wait, watch it get darker and darker. Do not move from that spot, till the sun rises or you wet yourself and go screaming out of the forest. Once you are settled in, concentrate on the shadows and movement of the woods, you will begin to see the spirits, strain to listen, empty your mind, and you will hear their voices flooding into your head. If you want an even better ghost scare. Try this in a dark, quiet, unfinished basement, or any other spookier part of your house.
I warn you, it will change your way of thinking, only the brave and intelligent can stay the whole time from sunset to sunrise. I managed it, but no I am a very light and tense sleepier, due to my fear.
Try it if you dare.