Augmenting semiotic meaning of the real space is a promising approach to altering human attitudes and behaviors because low motivation is one of the biggest reasons why people do not engage in activism. Incorporating fictionality makes us use more persuasive expressions to change the meaning of the real space. However, there are a few discussions about strategies to enhance the meaning of the real space. In this paper, we analyze two case studies that aim to augment the real space. The case studies use a head mounted display to show the real space by capturing it through a camera, but the space is augmented from the true real space. Our focus, in particular, is criticizing how one can feel a sense of reality in the enhanced real space in these case studies because the persuasiveness of the enhanced real space is lost if a user does not feel a sense of reality. We extract effective insights and potential pitfalls from the analyses of the experiences of the researchers who developed and evaluated the case studies.