play it cool
US /pleɪ ɪt kuːl/
UK /pleɪ ɪt kuːl/

1.
sakin kalmak, umursamaz görünmek
to act in a calm, unemotional way so that people think you are not anxious or excited
:
•
When she saw her ex-boyfriend, she tried to play it cool.
Eski erkek arkadaşını görünce sakin kalmaya çalıştı.
•
Just play it cool and don't show them you're nervous.
Sadece sakin kal ve onlara gergin olduğunu gösterme.