Taking place on 28-29 May 2019 in Brussels, the 1st GRACE Mutual Learning Workshop brought together 19 participants from the 10 partner institutions forming the GRACE Project consortium. The aim of the meeting was to set-up the micro-environment for the co-creative development of RRI-oriented Grounding Actions, at the six GRACE implementing organisations. The meeting was composed of thematic working sessions respectively devoted to Citizen Engagement (led by SEERC and ECSITE), Open Access and Science Education (led by Aarhus University and ECSITE), and Gender equality and Research Ethics and Integrity (led by K&I and the University of Groningen). The workshop was hosted by the Delegation of Catalonia to the European Union in Brussels.