Paying at a Convenience Store Register in Japan — JLPT N5 Japanese Conversation

The situation

Yattan (ヤッタン) sets a bento and a drink on the counter, and the shop staff (店員さん) works through the usual questions.

Key expressions

• 袋はご利用ですか / 温めますか — the register's yes/no questions in 〜ますか form. ご利用ですか is polite staff-speak for "will you use ~," and 温めますか is "shall I warm it?" Your job is simply はい or いいえ.
• 温めてください — "Please heat it up." This is the て-form + ください request, here turned back on the staff. See 〜てください and making requests for how the pattern is built.
• カードで / 現金で — the particle で marks the means or method, so カードで = "by card" and 現金で = "with cash." The verb (払います, "to pay") is dropped because it is obvious.
• お願いします — "please (I'd like that)." The all-purpose way to accept an offer or place a request politely: 袋、お願いします / カードでお願いします.

About Japanese convenience stores

A Japanese konbini (コンビニ) is a full service hub — you can pay bills, buy concert tickets, print documents, and grab a genuinely good hot meal. The register script barely changes between chains, so once you know the bag / heating / payment questions you are set nationwide. Most stores take IC cards like Suica and PASMO: just say 「Suicaで」 and tap the reader. If you get lost in the flow, the one survival phrase that always works is 「これでお願いします」 ("This one, please"), said while pointing.