A large body of literature is concerned with models of presence-the sensory illusion of being part of a virtual scene-but there is still no general agreement on how to measure it in an objective and reliable way. When it comes to virtual reality, presence is often considered as one of the main factors contributing to quality of experience, yet existing methods either rely on subjective assessments of users or on specifics of the virtual environment they are applied in, making it difficult for experimental procedures to be generalized. This paper presents ideas for research into promising measures of presence, based on first experiments with novel behavioral measures inside a rich environment which users can feel present in more naturally.