Studying the forehead (intellect), eyes (emotional depth), and chin (determination).
While many ancient texts like the , Agni Purana , and Varahamihira's Brihat Samhita contain Samudrik principles, dedicated treatises also exist: Samudrik Shastra: Palmistry Basics | PDF - Scribd
Observing how a person walks or the "energy" they project. Key Texts and Authors