Intersectionality within HCI is often only considered when it is made the topic of the study itself. Whether or not this should be the case is debated, as scope is often something researchers try to outline. This paper argues that reflexivity offers a particularly important solution when it comes to Intersectional HCI combined with the observing, analysing and understanding the impact on interactions between users and the technology, as well as the interactions between the teams building the software. This paper calls for all researchers to consider how race, gender and other protected characteristics may affect their research even when these are not the topics being researched, and to share this data in publication. To facilitate this, this paper presents a series of prompts in the form of usable cards, to aid researchers in carrying out reflective practices.