When Madeleine Albright became the first female U.S. Secretary of State, she led high-level negotiations between mostly male foreign government leaders. In 2009, comedian Bill Maher asked Albright if she ever flirted on the job and she replied, "I did, I did." Flirtatiousness, female friendliness, or the more diplomatic description "feminine charm" is an effective way for women to gain negotiating mileage, according to a new study.