Social Perception in My Voice

What does my voice think about you?

Could we identify our relationship with the person we are having a conversation with simply based on the musicality of voice?
I was curious about how different I talked to people in every social context. I recorded myself talking to five people that I have a different relationship with and look at words that I used the most like "yeah" and "right."

Here is a video of the project

"yeah" with a teacher in a classroom at frame 001

"yeah" with a friend at a coffee shop at frame 001

"right" when I conducted an user interview

"right" with a teacher in a classroom

"right" at a work presentation with my manger