Incivility can be slippery concept- teachers and student expectations are different. Acts like arriving late- no being prepared- surfing the net while on their computers- sleeping. How should a teacher deal with such acts
Let me first add to your list: not just computers, but texting on cell phones; eating in class (sometimes noisily); talking to other students (loudly at times); asking to talk with instructor privately during a lecture.....
Getting respect early is most important to be able to keep control during the difficult moments that are much too common.