What a loaded question....
When I was a child, it was not okay to cry, so I just learned to do it without making any noise. I still can. That being said, I don't cry in front of other people, but when I'm alone, I can really let it all out, and often do. When I had my precious German Shepherd, Izzy, I would sometimes lay in the floor, pouring out my pain and despair and she would lay next to me resting her head on me.
And now I need to stop before I start crying....

WW