jeo jeomwoneun chinjeolhaeyo.

topic particle

Breakdown of jeo jeomwoneun chinjeolhaeyo.

• 저: that
• 점원: clerk
• 친절하다: kind

Questions & Answers about jeo jeomwoneun chinjeolhaeyo.

What does 저 mean here? Isn’t 저 also “I”?

Here 저 is a demonstrative meaning “that (over there).” It modifies the noun that follows: 저 점원 = “that clerk.”
When 저 is used as a pronoun meaning the humble “I,” it takes particles directly: 저는 (I + topic), 제가 (I + subject).
So:

• 저 점원은 = “As for that clerk, …”
• 저는 = “As for me, …”

What’s the difference between 이 / 그 / 저?

• 이 = “this” (near the speaker): 이 점원 “this clerk (near me).”
• 그 = “that (near the listener or previously mentioned)”: 그 점원 “that clerk (near you / the one we just mentioned).”
• 저 = “that (far from both speaker and listener)”: 저 점원 “that clerk (over there).”

What does the particle 은 do, and why is it 은 and not 는?

은/는 marks the topic. It frames what you’re talking about and often implies contrast or a general comment.
Choice:

• Use 는 after a vowel-final noun (e.g., 아이는).
• Use 은 after a consonant-final noun (e.g., 점원은; 원 ends in ㄴ).
  So 저 점원은 means “As for that clerk, …,” often with a subtle contrastive feel.