It seems you're asking about of the Spanish edition of Joe Navarro’s book "El Cuerpo Habla" (the Spanish translation of "What Every Body is Saying" ), specifically regarding a solid feature or key concept on that page.

El cuerpo habla: Resumen y Análisis de Joe Navarro - Studocu

Discomfort , Elena translated. Emotional threat detected.

Navarro, J. (2008). El cuerpo habla. Ediciones B.

Interlocking hands behind the head is a sign of extreme confidence and dominance. Nat Eliason ⚠️ Detecting Deception