If spirits exist..how do they feel,see,or smell the world.,,havin no natural receptors?

I don't know.The one I saw when I was 16 floated by my friend and I in an old barnyard of an abandoned farm and never acted like she saw us at all.When I was 19 ,that same friend and I along with 4 others were at our old elementary school at night after we played basketball that evening until too dark to see.We sat on the lunch tables(all outside in So. Calif.) by the school wall.The drinking fountain came on full blast.We turned and watched the silver handle turn on and off several times but saw no one.I think that one saw us and didn't want us there.So I don't know when they see and when they don't.