Kijani wondered why he seemed so delighted. She was glad for the help, though, as he took some of the weight from her. "Yes, I'm done shopping." She tried not to look apprehensive when the price came up, but it was less than she expected, and so she paid without feeling much guilt. 

"What are you so happy about, huh?" 

(You can dial down the technical stuff... I really have absolutely NO idea what that conversation meant.)