In Mad Men, a TV series about the mostly male advertising execs who dominated Madison Avenue in the 1960s, confidence had no shortage of swagger. It embodied the male bravado that many women feel compelled to emulate in meetings, discussions, and any situation that requires self-assertion.In reality, taking on the “armor” of someone else to convey confidence is too heavy of a burden to sustain over time, particularly given the fact that confidence in women doesn’t always look the same as it d...