Jacomien Ilbrink-de Visser from the Netherlands, CP, PAT (TEP in training). Jacomien received her training in psychodrama in New York City, where she mastered the application of explicit sociometry, also known as hand-on-shoulders sociometry. Over the past decade, she has specialized in teaching sociometry to clinicians, coaches, and educators in Europe, developing a structured approach to its safe application using Moreno’s developmental theory as a guideline.