Manías translates to 'quirks' or 'habits', but it often carries a connotation of peculiar or even obsessive behaviors. It's a more specific and intriguing word than just 'habits'.
In the song, the line "Conoces todas mis manías cada vez que echamos pasión" (You know all my quirks every time we make love) suggests an intimate knowledge of the singer's unique traits and eccentricities. This word adds a layer of depth to the relationship described, highlighting the unique bond between the two people.
Neton Vega sets a whole mood in "Pa Ti." It's a song about a guy trying to win over a woman who's clearly been let down before. You can tell she's tough and doesn't trust easily when he sings, "Se nota en su mirada, ella no cree en caricias ni besos" (You can see it in her eyes, she doesn't believe in caresses or kisses). He sees himself as the one who can break through her defenses, not with empty words, but with action. He's confident, telling her he's different from the other guys who just talk.
But don't get it twisted, this isn't a straightforward love song! He opens with a pretty blunt personal philosophy: "El amor no es pa' uno, a cada rato me lo recuerdo" (Love isn't for one person, I remind myself of that all the time). So, he's pursuing this amazing, confident woman who "no le gusta perder el tiempo" (doesn't like to waste time), but he's also telling us he doesn't believe in monogamy. It's all about a passionate, in-the-moment connection that lasts all night until the sun comes up.