play it cool

US /pleɪ ɪt kuːl/
UK /pleɪ ɪt kuːl/
"play it cool" picture
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.