Therapists often pay attention to a client's hand movements during sessions as these gestures can reveal a lot about a person's emotions and thought processes. Observing hands may provide clues to hidden emotions or unresolved conflicts that verbal communication might not capture. Understanding these nonverbal signals can enhance the therapy process, making it more effective for both the therapist and the client. By reading body language, therapists gain a more comprehensive understanding of their clients, which aids in identifying subconscious feelings and states.