I don’t think you can teach someone to be ‘white.’ You can integrate them into the culture, and you can tell them how we act, and even get them to emulate the same actions/thought patterns. But they are their own person, especially if they weren’t raise in the same ‘white’ culture. I personally would simply educate them about what are accepted things in the culture. And, assuming I know some about their culture, what is less accepted as a norm. Letting them learn as they go. ‘The only way to learn is to try it for yourself.’ Can’t remember who said that.