Generally loves people and makes them feel valued; donates money/time/effort into helping disadvantaged people; doesn't think it's funny when someone gets badly hurt, even a stranger; doesn't manipulate or try to dominate others; doesn't steal; isn't a Republican or a Trumpster; is vegan; doesn't hunt for sport; isn't proud of their gun collection...I guess I'll stop thinking of traits there.

That's not to say that anybody that doesn't conform to every one of those traits isn't a good person; they're just various things I associate with the notion of being a good person.