Virtual Reality (VR) offers language learners a valuable environment for practicing language skills and other aspects essential for language development, interaction, and negotiation of meaning. For example, speaking practice in VR using avatars can reduce speaking anxiety and increase users' sense of agency. Social spaces in VR present possibilities for verbal and nonverbal communication. This conceptual paper discusses the advantages and drawbacks of both types of communication in high-immersion VR and the implications for language learners. Language learners rely on multiple modes of communication, including nonverbal behavior such as gestures. However, VR often lacks behavioral anthropomorphism, i.e. when an avatar cannot speak, move, or act in a human-like way, which may negatively impact communication, especially at beginner level. [For the complete volume, "Intelligent CALL, Granular Systems and Learner Data: Short Papers from EUROCALL 2022 (30th, Reykjavik, Iceland, August 17-19, 2022)," see ED624779.]