The rise of Mixed and Virtual Reality technologies can stimulate more intense game experiences, offer new opportunities for learning and have made new interaction paradigms possible. However, it is important to understand how players engage with mixed and virtual realities, and how to design ways to subtly pull people in and out of the game world as the context requires. This paper proposes a framework based on concepts of the magic circle and diegesis, to provide four Mixed Reality interaction design strategies, and subsequently gives a game design exemplar for each of these categories to highlight how they can be operationalized.