Match your body to your words

Assertive words undercut by passive body language read as a bluff.

Why it works

Listeners weigh nonverbal signals heavily, so a firm statement delivered with averted eyes, a shrinking posture, or an uptalk question-tone reads as uncertainty and invites pushback. Aligning steady eye contact, an upright posture, and an even tone with the words makes the message coherent and credible, so it’s taken at face value rather than tested.

How to do it

1. Hold steady (not aggressive) eye contact and an upright, settled posture as you speak.
2. Keep your tone even and statements ending downward, not in a rising question.
3. Slow down; rushed delivery signals you don’t expect to be taken seriously.

Evidence

Nonverbal congruence is a standard element of assertiveness and social-skills training, reflecting well-documented findings on how heavily listeners weight nonverbal cues. (clinical)

A taught component of clinical assertiveness training; the general role of nonverbal cues is well supported, while specific posture prescriptions are practice convention. Calibrate so firm doesn’t tip into aggressive.

Common mistake

Saying the assertive words while the body apologizes — shrinking, avoiding eye contact, ending firmly with a nervous laugh — so the request reads as negotiable.