At a traditional market

Say it like this

1. 이거 얼마예요?igeo eolmayeyo?How much is this?
2. 조금만 깎아 주세요.jogeumman kkakka juseyo.Could you lower the price a little?
3. 한 근에 얼마예요?han geune eolmayeyo?How much per geun (the market weight unit)?
4. 맛봐도 돼요?matbwado dwaeyo?Can I taste it?
5. 현금만 돼요?hyeongeumman dwaeyo?Cash only?
6. 반만 살 수 있어요?banman sal su isseoyo?Can I buy just half?
7. 포장 따로 해 주세요.pojang ttaro hae juseyo.Please wrap them separately.
8. 덤 좀 주세요.deom jom juseyo.Throw in a little extra?

Good to know

• Bring cash; small stalls may not take cards, though transfers and cards are getting common.
• A friendly “덤” request is part of the fun — vendors often add a little extra.

All phrases use the polite -요 style, which works with strangers of any age.