Nonverbal cues are especially likely to carry a lot of weight when they contradict a speaker's words.

I believe the answer is: True

Nonverbal cues refers to the body language that displayed by the communicator when delivering his/her message (such as their posture, expression, intonation, sweating, etc)

According to studies, people on average rely on nonverbal cues to decipher 70% meaning of a message