Was reading a book with a B24 crew, and they were flying over the pacific and there was poor visibility. So at night they opened the door outside, had two guys hold the navigators feet so he couldn't get sucked out and he used a sextant to figure out their position.
it doesn't have to be complex, it just needs to not be repetitive.
EX: Scene 1 a bunch of people talking in a bar
scene 2 people talking in the forest
scene 3 people talking in a castle
= Bad
It needs to have a variety. Complex language is just one way of doing that.