Men — want to know the secret to looking trim, confident and well dressed? Simple: button your jacket! While no one may criticize your open jacket, buttoning up enhances your credibility and presence. Just look at Jay Leno, David Letterman or Tom Bergeron — they are buttoned up.
Women’s fashions vary so widely, buttoning up is optional for female speakers. Some fashion-forward blazers or suit jackets were not designed to be worn buttoned up, but if you’re wearing a traditionally cut pantsuit or skirted suit, you will look more polished if you do.