hello so I'm writing for a discussion but I'm having brain drain, so would anyone be willing to give something to write? here is the discussion topic or whatever

Discussion Topic
Many different traits make up a culture. During an exchange known as cultural diffusion, some of those traits are spread from one culture to another. How do you think cultural diffusion works? How might a trait travel over great distances? What cultural traits do you think are the most likely to be passed from culture to culture?

and my pea brain cannot answer this, as i said earlier, I'm going through brain drain. Thank you