while I was at the parking lot behind my office building . I was getting my car to go to lunch with some colleagues. As I was about to enter the car I heard someone calling my name out loud. It was a familiar voice but, I was the only one in that area at the time. I looked up and saw no one was there which was rather strange because I could swear I heard that voice just merely a few seconds and it couldn't have been more than two meters away from me , but no one was there. It wasn't extraordinary the fact that no one was there, because normally only a few cars park there every day and all of them were still in the office except for me .