19. The verb to look or look at is rendered mirar, the at remaining untranslated.
Looking through the window, I saw that my friend was looking at the flowers.
Mirando por la ventana, vi que mi amiga miraba las flores.
(a) To look (as if) is rendered parecer. The impersonal it looks as if may be translated según parece, or por lo visto.
You look very tired. It looks as if you had been working too hard.
Parece Vd. muy cansada. Ha trabajado Vd. demasiado según parece.
It looks as if he had determined to stop our talking.
Parece que se ha propuesto impedirnos hablar.—LOS QUINTERO.
(b) To look for or look up is translated buscar.
I don't know where they went. For my part I'm not looking for them.