I choose to be nice to people. It didn’t occur during an experience where I had to be nice. I decided I wanted to be nice, so I am nice. I choose to be nice. Another example. It’s the apocalypse, and a stranger approaches, saying come with me. Are you trusting, or suspicious? You choose to be trusting, and embrace it.
Sure, you’re born with a couple of traits that come on naturally, but you can choose to embrace them, or not.