any type of non-verbal conveyance, like a gesture, facial expression, or bodily movement, which increases the frequency of the actions which immediately comes before it.
Cite this page: N., Sam M.S., "NONVERBAL REINFORCEMENT," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/nonverbal-reinforcement/ (accessed March 20, 2023).