Isn't NLP brainwashing?
I'd just use a little bit of charm. Should work just as well as any other tactic
Neuro Linguistic programming just sounds a little bit like hypnotism to me (I think a lot of hypnotists use this technique) and I prefer to use charm in my classes (which perhaps is a form of hypnotism too!). I find charm to be synonymous with 'good rapport'. I dont think of it as just sex appeal I have very little of that
Have a good day and happy teaching / learning