알은체했다

In a sentence

• 그는 모르는 척했지만 내 농담에 알은체했다.

  He pretended not to know, but responded to my joke.

  In this sentence, "알은체했다" is used to describe someone acknowledging or giving a sign of understanding toward something, despite initial appearance of disinterest.

• 아이들은 선생님의 이름을 들었을 때 바로 알은체했다.

  The children immediately recognized when they heard the teacher's name.

  Here, "알은체했다" conveys the notion of recognizing or showing an acknowledgment upon hearing the name.

• 새로운 이웃과 인사를 나누지 않고도 느낌으로 알은체했다.

  I perceived a connection with my new neighbor even without exchanging greetings.

  In this usage, "알은체했다" indicates a silent or intuitive acknowledgment or recognition without explicit communication.