play it cool

US /pleɪ ɪt kuːl/
UK /pleɪ ɪt kuːl/
"play it cool" picture
1.

berlagak tenang, bersikap acuh tak acuh

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.
Apabila dia melihat bekas teman lelakinya, dia cuba untuk berlagak tenang.
Just play it cool and don't show them you're nervous.
Hanya berlagak tenang dan jangan tunjukkan kepada mereka bahawa anda gementar.