She peered at me with those cute, innocent eyes, noticing that I had a bit of parsley stuck in my teeth.
こんにちは！
ご質問ありがとうございます。
ご質問について、いくつか言い方が考えられますが、例えば、
She peered at me with those cute, innocent eyes, noticing that I had a bit of parsley stuck in my teeth.
とすると、「パセリが[歯に付いて](https://eikaiwa.dmm.com/uknow/questions/6200/)いて、可愛い眼で覗き込まれた。」となります。
役に立ちそうな単語とフレーズ
peered at じっと覗き込む
cute 可愛い
innocent eyes あどけない眼
stuck in my teeth 歯に付いている
参考になれば幸いです。
I was eating lunch with my girlfriend, and had a piece of parsley stuck on my tooth. She was looking at me kind of cute.
この場合、次のような言い方ができますよ。
ーI was eating lunch with my girlfriend, and had a piece of parsley stuck on my tooth. She was looking at me kind of cute.
「彼女をランチを食べてたら、パセリが歯について、彼女が可愛く私を見てきた」
to have a piece of parsley stuck on one's tooth で「歯にパセリがつく」と言えます。
ご参考まで！
日本 
カナダ 
