Answer:
The recording of physical actions or movements of participants is called Nonverbal observation .
Step-by-step explanation:
Nonverbal Observation -
This is type of non linguistic transmission of any kind of information , via any auditory , visual , tactile and physical channels.
Nonverbal communication refers to the transmission of any kind of signal or message via any non verbal platform ,
Non verbal platform could be by facial expression , eye contact , any gestures , posture or the distance between two peoples .