I look mostly at the ground to avoid stepping on dog poo.

Edit: looks like the study was not done using eye tracking and was instead done with pictures:

https://news.byu.edu/intellect/study-visually-captures-hard-truth-walking-home-at-night-is-not-the-same-for-women <- news thing

https://www.liebertpub.com/doi/full/10.1089/vio.2023.0027 <- paper

Participants were given 16 images and asked to consider walking alone through the place in the picture. Using the Qualtrics heat map tool, they were instructed to imagine themselves walking through these areas and to click on the area(s) of the image that stood out to the most to them.

Source: the research article paper I linked above

Also, even if it was done with some type of eye tracking glasses, if you knew you were taking part in a study, would you be worried about what might happen, in comparison to how worried you are normally? Like I'm not gonna be worried about someone sneaking up on me if I know I'm being observed and more likely to be safe, so naturally I'd be more relaxed. I imagine the same applies for other people.