Get People to Do What You Want: How to Use Body Language and Words for Maximum Effect

Persuasion is not just a matter of finding the right words. In Get People to Do What You Want, Gregory Hartley and Maryann Karinch look at how body language, belonging, group behavior, and the projection of leadership shape human interaction—and how to recognize when influence becomes manipulation.

Drawing on Hartley’s background as an interrogator and the authors’ work on human behavior, the book connects interpersonal communication with the dynamics that operate in groups. Its perspective is useful for readers who want to understand not only how people influence one another, but also how to stay alert to the tactics being used.

From individual signals to group dynamics

The first section, “The Dynamics of Human Interaction,” moves from shared needs—belonging and differentiation—to the mechanics of group behavior and charisma. This broadens the discussion beyond a single conversation: it considers how people relate to one another and how leadership and group identity can affect those relationships.

Practical tools, with a note of caution

In “Tools of the Trade,” the authors turn to tools for influence and human modeling. The book also addresses ways to identify and guard against manipulation, making awareness of others’ influence part of the subject rather than an afterthought.

For readers curious about how influence works

This book may interest readers exploring communication, social psychology, leadership, or body language, especially those who want to think more carefully about trust and persuasion in both one-to-one and group settings. Its central question is timely in any context where people are trying to understand one another—and where it matters to notice when persuasion crosses a line.