Each day I write in the top right hand corner of the board the word "Professional" and immediately below it I post the definition: 1. Knowledgeable 2. Ethics/morals.
Reason:
When there is a behavior pattern that is not consistent with the expected norm, I refer the student to the top right hand corner, by saying "that is not professional". Equally, if the behavior is worth applauding, for example, courtesy extended in any form to a class mate, I would say "that is being professional". Hopefully, the students will ponder first, whether their words or actions reflect the professionalism being trained towards.