Behavioral testing outside the home is not as straightforward as it used to be – there are now federal and state guidelines, as well as the comfort and safety of your participants to consider.
If you want to do ethnographic research outside of the home, think of ways for participants to journal or record their experience without putting themselves or others at risk. For example, allow them to journal after they get home, as opposed to having participants record extended live interactions while shopping, at work, or in other locations outside the home.