笑顔を

smile

→ 笑顔
phrase Rare #22,166
smile 笑顔 means “smile” or literally “smiling face,” and を marks it as the object of a verb. The phrase usually appears as part of a longer expression, such as 笑顔を忘れない (never forget to smile) or 笑顔を見る (see someone's smile).
JA: 毎日、笑顔を忘れないでね。
EN: Don't forget to smile every day.

たまには笑顔をもう見ていいぞ

You can smile once in a while, you know.

— コーラス (2004)

笑顔をさあ出ろ

Come on, let me see that smile.

— コーラス (2004)

そしていつも笑顔を忘れずに

And always remember to keep smiling.

— 魔女の宅急便 (1989)

ナンシーなかなか笑顔を見せない

Nancy rarely smiles.

笑顔を続けて

Keep smiling.