How to pronounce “chummy” in English

What's going on here?Pretty chummy. Yeah, she's from Nashville.So it was actually quite surreal.

So, I started looking into it a little harder.And so, it's usually very chummy at conventions.

Then we were at First Friday.And even then, even with the incorrect permit for what we were doing, we were still kind of chummy with the health department.And we were at First Friday.