The context of the following conversation is Our substitute teacher that day was Kendall, who took us all to the art museum.:
Kendall says I was the substitute teacher that day..
The friend responds I didn't know you were a substitute teacher..
Kendall responds Yeah, I'm on call at the charter school..
The friend responds That's nice. Do you choose the activities for the classes you teach?.
Kendall responds Sometimes. That day I did. I took the class to the art museum..
The friend responds You must be a great teacher..