好きに使って

use it however you like

→ 好きだ
phrase Rare #44,871
use it however you like A casual way to give someone permission to use something freely; the thing being used is often understood from context.
JA: このペン、好きに使って。
EN: Use this pen however you like.

ソフィーなら好きに使っていいよ

Sophie, feel free to use it however you like.

— ハウルの動く城 (2004)

好きに使って

Use it however you like.

— レミーのおいしいレストラン (2007)

この部屋、好きに使って。

Feel free to use this room however you like.

“好きに使って”なんて

“Use it however you like,” they say.

— レミーのおいしいレストラン (2007)