I'm a linguistics and anthropology type of guy. I wanna see more worldbuilding with the little things in everyday language and culture.

For example sci-fi authors back then might have predicted the smartphone but probably didn't expect skeuomorphism, like the fact we still have buttons and sliders in UI. Or like how the American accent was actually the original accent of English in England, and only after the American colonies were established, non-rhotacism became associated with higher class in England.

Another example, my Indian girlfriend and I were discussing, in India the electrical switches are inverted to the US standard, so down is on, up is off. She says phrases in the opposite way too, like "come off" to mean my "come on." Maybe something there...