have someone's nose wide open

Verb

slang

(slang) To have someone in love or infatuated with oneself; to be someone's object of affection.

Japanese Meaning

(スラング) 誰かに自分に対して恋愛感情や片思いの気持ちを抱かせ、相手を虜にする、つまり自分がその人の恋愛対象となる状態にさせる

With his kindness and humor, he could easily have someone's nose wide open before the end of the night.

彼の親切さとユーモアがあれば、その夜が終わる前に誰かを簡単に惚れさせてしまうだろう。

Sense（1）

(slang) To have someone in love or infatuated with oneself; to be someone's object of affection.