Understanding and Appropriation, two words that can make all the difference. If everyone understands that people that they might come in contact with will not be the same as them or have the same experiences then we could all be able to respect and appreciate the differences that we do have.
Understanding is you taking into consideration what has happened to a person and the everyday struggle of how they live, even if you personally dont have to deal with it, and to most importantly support the person if they need support.
Appropriation is just respect for a culture or person. Knowing what is appropriate for what they identify as and not passing a boundry that they have set, for example black face is not appropriate or dressing up as an "indian" is not appropriate to indigenous people.