I don’t know if I’ve ever had to paste a smile onto Cathy before. I guess I had to let her win at least one argument.
I’m not sure she found exactly what she was looking for, though. The different uses of “use” are distinguished from each other subtly enough that it’s not a really good example of what she was assigned to find. Perhaps Abby is just playing along, knowing that Cathy will still suffer in the end.
Or maybe Cathy just made up the assignment that she claims Abby did for her, to get back at Abby for last strip. You pick the interpretation.