play in to it

When someone insults you or could do, based on appearance or attitude, but by making a comment back you've "played in to it."

For example when a midget dresses up as a Oompa Loompa, they are playing in to their appearance, by making it into a joke.
Person 1: Yo man did you see the small guy?
Person 2: Yeah man, he knows how to play in to it.