In addition of focusing on "I" statements regarding student misbehavior, I also like to focus on "we" statements. Here are a few examples: For us to succeed, WE all need to pay attention. To facilitate learning, WE must take this assignment seriously. I find this very effective, and "We" statements appear to culture immediacy and rapport, both which directly affect retention. Plus, instead of it appearing as if what I am asking is for my own personal needs, its worded in a way that reflects we are all in this together and all must work together to facilitate learning.