How to Cry, Whimper, or Moan?

Is there a way to learn how to cry, whimper, or moan in a scene?

Growing up in a small family with thin walls, I learned quickly how to hold back my emotions and stay silent/unexpressive. If I ever cried, it'd be quietly and away from everyone else, which led me to be unable to cry in front of anyone at all regardless of the situation. As for masturbating, I always came silently because, again, we had thin walls, hence why I don't know how to whimper or moan.

This was useful at the start, but now I don't know how to be expressive during scenes, which I really want to fix. As someone who loves bdsm, especially painplay, it feels kind of boring to just lay there and I want to learn how to do more. I attempted both moaning and whimpering but it just sounds so awkward, and I just cannot figure out how to cry at all.

Do any of you have any tips?