What are the differences between the north and the south in your cognition?

I live in a dormitory. I'm from the north and the other three are from the south. When I get along with them, it is inevitable that many unpleasant and funny things will happen because of the differences between the north and the south. I am in a school in the south. I just want to say that I can feel or say the difference between North and South in my life.

Most northerners have never seen the sea, and most southerners have never seen snow, which is very different. Because of the climate and geographical location, northern cities are generally not near the sea, so some northerners may never see the sea if they don't travel, while most cities in the south are coastal or near the sea, so almost all of them have seen the sea. However, because the south is closer to the equator and the climate is hotter than the north, it may not snow all year round, while southern cities are generally more economically developed than the north, so some southerners may not go to the north to see snow except for school or business trips.

In the north, all the dishes that can be served on the table are called stir-fry, while in the south, only rice is called stir-fry.

Cockroaches in the north are not as big as those in the south. Cockroaches in the south are so scary that they can fly almost everywhere. It is often reported on the Internet that a seven-foot man from the north came to the south and was scared into a sheep by a cockroach.

Northerners generally eat a lot of pasta, so they are generally tall and thick, and their voices have a unique rough voice. In the south, many vocal cords lack the characteristics of coarse voice because of food or dialect, and their voices are generally sharp.

Just now I mentioned dialects, which is the biggest difference. Generally speaking, northerners only change their tone and original sound. Even in the south of Renye Fang, they can understand most of Mandarin. However, dialects in southern dialect areas have their own characteristics. Northerners may not understand a word when they come. Perhaps for this reason, during my days in the south, I found that most people can speak Mandarin, even the extremely substandard Mandarin can be understood. In many places in the north, people can't speak Mandarin at all, but only use their hometown dialect.