How do I communicate with a ghost?

Question: How do I communicate with a ghost?

"My wife and I live in a 16 x 80 mobile home that we bought new in 1995 and no one has died in it," says David. "Once in a while I have been awakened by the sound of the floor creaking just out side our bedroom. I have checked the house not to find anyone. I have been awakened to a young girl laughing very loudly. It sounds like it is coming from our living room. I was wondering if there was a way that I could try to communicate with the little girl or tape or record this to see if it is just me dreaming or that there is something going on."

[Answer @ Paranormal.About.com]