-(으)면서 'while' plus 알다, usually in the form 알게 되다 'come to know': 지내면서 알았죠 'I found that out as we spent time together', 이번 앨범을 만들면서 알았어요 'I realised it while making this album', 틱톡 라방이라는 것도 모임하면서 알게 됐어요 'I learned about TikTok Live through these meet-ups'. The point is that the knowledge came out of the experience rather than from being told. 알게 된 분들 are the people you got to know that way.