Answer:
Regulator
Step-by-step explanation:
In non-verbal communication, regulators are gestures or cues which helps regulate conversation. In normal conversation, regulator determines head nodding, eye-behavior, turn-taking. and inflection. In this case, when Caroline stops at a particular juncture to enhance curiosity or generate suspense for making the anticipated story more interesting Jason uses regulator gesture. Jason's regulator is aimed at prompting Caroline to continue with her story since she no longer wishes to wait anymore. The question in the regulator shows the urgency of response from the narrator.