There's so many opinions of how to handle Charm Person, and being charmed in general. And they're all right! Obviously, we'd never tell you our way of acting charmed is the only way. But we will tell you how we keep it pretty simple in our heads, and are able to actually play this out in a way that fits the game. Too many times we've gone too big, and let them befriend the big bad for all time, or too small, and planted a big juicy "no" on our reactions.