A good person at heart

What are some signs that someone is a good person at heart?

1. People who offer help and not expecting anything in return. Of course I would do something in return anyway but that makes me feel loved and genuinely cared for.

2. It's all about how they act when they know nobody is looking. If your moral compass is pointing true, it doesn't matter who sees you doing what.

3. They try - to the best of their abilities - to function and live in such a way that, if everyone lived that way, the world would be a more peaceful and fulfilling and joyous place to live in.