Taylor Swift -- Shakes Off Harry Styles During Icy Encounter

Body language refers to various forms of nonverbal communication, where in a person may reveal clues as to some unspoken intention or feeling through their physical behavior.

Keep that nugget in mind as you watch Taylor Swift react as ex-boyfriend Harry Styles approaches her and her friends in the lobby of the Sunset Marquis in L.A. on Wednesday night.

Normally Taylor lets her words do all her talking, in this case ... she did it all without saying a single one.

Haters gonna hate, hate, hate, hate, hate.