To move a file to another folder, drop the icon on the destination folder's icon. Or, if both the source and destination folders are open, drag the icon from the source folder's view window and drop it onto the background of the folder's view window.
To place an icon for a file or folder on the backdrop of your current workspace, drop the file or folder icon outside of any window. A desktop object is really just a reference to the real object, which remains in the File Manager view, unchanged.
To print a file, drop the file icon onto the Printer control in the Front Panel (or one of the printers in the Personal Printers subpanel).
To delete a file or folder, drop the file or folder icon onto the Trash Can control in the Front Panel.
If you try to drop an icon in a location that does not support dropped objects, the icon snaps back to its original location in File Manager or on the desktop.