Contemplaba comes from the verb contemplar, meaning 'to contemplate', 'to gaze at', or 'to observe deeply'. It's a more evocative and less common word than simply 'mirar' (to look).
In
Neto Bernal's "Poquito A Poco" tells a sweet story about falling in love on the dance floor. It all starts when he's dancing with someone, just observing their face. He thinks, "Eras linda en verdad" [You were truly beautiful], but he's too shy to say anything at first. He just knows, "ya me estaba gustando" [I was already liking you].
As they keep dancing, little by little, he starts to open up. He leans in close and whispers to them, "Que mi cariño era para ti" [That my love was for you]. It's a charming progression from silent admiration to a heartfelt confession, all thanks to that one night of dancing. He can't believe that night, just the two of them dancing, led to him never wanting to be apart from them now. It's a really cute and relatable tale of how a simple moment can turn into something much more.