play the fool
US /pleɪ ðə fuːl/
UK /pleɪ ðə fuːl/

1.
fare lo sciocco, fare il buffone
to behave in a silly or foolish way, often to entertain others or to avoid responsibility
:
•
Stop playing the fool and take this seriously.
Smettila di fare lo sciocco e prendila sul serio.
•
He was always playing the fool to make his friends laugh.
Era sempre a fare lo sciocco per far ridere i suoi amici.