At the end of Chapter 3, Kino rejects Juana's fears that the pearl will destroy them. He silences her and even acts aggressively. Kino seems to be under the spell of the pearl and views it as his one chance for a brighter future. His reaction to Juana's pleas reveals Kino as a proud and stubborn man.
A non verbal strategy! :D
Nonverbal communication includes gestures, facial expressions, and body positions (known collectively as “body language”), as well as unspoken understandings and presuppositions, and cultural and environmental conditions that may affect any encounter between people.
