Get Your Students Hired
The advice about moving to the area where the inattentive student is makes sense. I have used it repeatedly in my classes. The only issue is when you have a really stubborn or rebellious student, they go back to what they were doing when you move away. When it comes to cross-talk I address this at the beginning of every class session and we discuss how it is a form of disrespect. I then call them out when needed, but it's kind of rare. I work in a prison, and they know that they will receive a "corrective action" which can negatively affect them when they meet with their judge.