Over The Door Address Signs

What should I do if a UPS package was sent to my house?
I bought this house a year ago. I have no address previous owner or telephone number. A UPS package delivery stood in front of the door (no one signed for her). How do I return the parcel to the sender? UPS I charge for sending back? I do not think they should because it's not mine.
Call and ask them to choose, I doubt they want and if they Tell'em to take a walk.
Robert Pattinson-Let Me Sign-Song From Twilight.