Just imagine this as a phone call between 2 of your favorite characters from a book. This works for almost any combination I can think of.

Person 1: Don't do anything stupid.
Person 2: I won't. I promise.
Person 1: What are you doing?
Person 2: Something stupid.

Here are some that I would use:
Person 1 is Annabeth and Person 2 is Percy.
Person 1 is Hernione and Person 2 is Harry.
Person 1 is Amanda and Person 2 is Finn.
Person 1 is literally anyone and Person 2 is Leo Valdez.