Feed Someone a Line

deceive someone<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

Mr. Jones had been telling Louise how efficient she was and how much he admired her work at the office. He had promised her a promotion in the near future, but she soon discovered that he was feeding her a line when he passed her by and gave the promotion to someone less capable. Louise was acutely disappointed to find out that Mr. Jones was not telling her the truth, and that he was deceiving her.