'~고 있다' means 'be ~ing'. 나는 울고 있다. I'm crying. 나는 웃고 있다. I'm smiling (or laughing) -------------------------------------------------------------------------- '~며' is used to describe more than 2 actions or status. 그는 몸을 돌리며 찼다. He kicked with his body turned. 그는 웃으며 울고 있다. He is smiling with his eyes dropping tears. (We can use the expression when he is sad but hopes someone , who is leaving, will be happy) -------------------------------------------------------------------------------------------------------- '~만' of '~만 하다' 'means 'only' 그는 떠나가는 그녀를 바라만 본다. He only stares at her who is leaving. ( No comments, for example, " I'll miss you". And no action, for example, to wave his hand.) Come to think of it, '바라만 보다' is irregular form of '~만 하다' '바라만 보다' also can be '바라보기만 하다' The basic form is 바라보다. 그는 떠나는 그녀를 바라보기만 한다. = 그는 떠나는 그녀를 바라만 본다. The latter is shorter and convenient. So I guess the latter is used frequently.

this is the song that man from secret garden right? hm from my knowledge i know that the meaning of the first line translate better as ' even though that man is smiling, he is crying from the inside'.the literal meaning of particle 며 could be closely translated as 'or' and ' in place of' depending on the context. in this context, this particle fits best as 'although'. 울고 is a combination on the noun 울and the connecting particle 고. the noun means to cry and the particle means 'and' or 'also' literally. if to translate this song line into a raw form the translation would be something like 'that man is laughing though also crying' 바라만- means to stare (noun)