Philipp Eppe was a co-organizer and co-presenter of a workshop “Fantastic Models and How to Make Them: A Beginner’s Guide to CaterFly”. The workshop was part of the ABM4Energy Conference on Agent-Based Modeling for Energy Economics and Energy Policy that was held in Freiburg (Germany) on March 21-22, 2024. The workshop’s goal was to bring together early-stage researchers who work at the intersection of agent-based modelling and behavioural science, with the energy transition as their main topic of interest. During two interactive exercises workshop participants gained insights into the impact of slight variations in behavioural rules of agents and into the challenges regarding the interface of ABM and behavioral science. Participants also shared their own approaches in integrating behavioural science in agent-based modelling and tried to find interconnections with other participants’ research.