I'll use me and one of my sisters as an example if that's okay. (also, I only have . between every word my sister says because she talks really fast.)
Me: "Why are you so upset?"
Sister: "I'M.NOT!.LEAVE.ME.ALONE!"
Me: "Come now, and tell me, or do I have to get Mammaw?"
Sister: "No.I.Don't.Want.To.Tell.You.I.Said.Leave.Me.Alone!"
Me: "What ever. Eventually, I'll find out."
Basically, or at least in my adopted family, the females like to yell when they're upset or angered, and when they're in a good mood, they talk as if they never yelled in their life. I know it's not the same for all females, because I don't do it and I have friends who don't do it.
The answer is there are regional dialects within the Deaf community.
I'm not exactly sure but it can be used to reveal the emotion and how the person feels about a certain situation
