Lama Ole’s answer:
I think compassion is the most helpful. Wish people all the best so that everything else becomes secondary—whether they have a weird hair color, are too skinny or fat, or whatever else. You just direct the good trip you’re on towards your fellow beings and consciously wish them all the best so that it rubs off on them. Then everything else is OK anyway.
The way they are is their kind of wisdom, their peculiarity. One can also use wisdom—for example, by imagining what karmic causes have led to their present look or behavior. But I think compassion is best.