So how did you get your nickname used here?

[LooseCaboose]

look = mirar
look for = buscar
look after = cuidar
look into = investigar
look upon = considerar
look out! = ¡cuidado!
look up = consultar
look forward = ansiar
look in on = visitar

English (and other languages as Moneo pointed out) often has more than one of expressing something, ie:
look for = search, seek
look after = tend, care, nurse
look into = investigate, examine, inspect
look upon = gaze, consider
look out! = watch out, careful
look up = consult
look forward = envision
look in on = visit

You can be poetic in any language, its just a matter of learning it properly ;-). Some languages like Japanese do have multiple words that mean the same thing. For example Japanese has several different numbering systems for counting different things (ie people, objects, money) and many words are different based on the formality of discussion.