How to pronounce “casualness” in English

One is I was really impressed with the casualness with which Miller, particularly, operated his various bits of media technology.

way he walks is with a with a casualness I mean with a with a with a with a a style with you know that I mean you see

I mean, it was a steadied casualness.

could only wear blue jeans to work every day she'd pay twenty dollars a day so i think this casualness really does