Real Life Encounters

About ten years ago, i went on a ghost hunt with a group of friends in Armagh, Northern Ireland. We were with a local team and we explored the house first, before we sat in one of the rooms. The lights were left off, as the man in charge attempted to communicate with any spirits that were present. 
As we sat in the room, it became quite cold. The man in charge said that a spirit had entered the room, a soldier who used to live in the house.
I saw the outline of a man appear to walk around the table and stop behind someone in the group, when I asked if that was where he was standing, the man in charge confirmed this. It looked like a shadowy outline, but it wasn't solid, it looked like heat waves moving around in the shape. It is the first time I have ever seen anything so clearly.