play to the gallery
to perform in a manner that will get the strong approval of the audience
The politician always plays to the gallery and tells his supporters what they want to hear.
Ways to Be a Better Parent
Give appropriate praise
Instead of simply saying, Youre great, try to be specific about what your child did to deserve the positive feedback. You might say, Waiting until I was off the phone to ask for cookies was hard, and I really liked your patience.