This paper discusses the enactment and evaluation of Embodied Conversational Agents (ECA) capable of affective communication in Collaborative Virtual Environments (CVE) for learning. The CVE discussed is a reconstruction of the European Parliament in Brussels developed using the REVERIE (Real and Virtual Engagement In Realistic Immersive Environment) framework. REVERIE is a framework ... http://www.roneverhart.com/100-Percent-Sunglasses-SPEEDCRAFT-LE-Money-Mike-HiPER-Silver-Mirror/