[6]Can I try this on ?/試着してもいいですか？

[21]I’ll leave it (up) to you./あなたに任せるよ

[9]I’ll think about it./ちょっと考えてみます

[37]naive/世間知らずな

[26]After you./お先にどうぞ

[16]BOGO/Buy One Get One

[5]headed to〜/〜に向かう

[34]What would you recommend?/おすすめは何ですか？

[31] Can I have two medium french fries with extra ketchup?/フライドポテトMサイズを2つケチャップ多めでお願いします。