"Gustos Exigentes" ("Demanding Tastes") is a narcocorrido-style brag by Grupo Codiciado, and the narrator wants you to know two things right away: he is easygoing, and you should not go poking around. "Soy tranquilo y buena gente" (I'm calm and a good guy), he says, then adds "Más no busquen porque encuentran" (but don't go looking, because you'll find). It is a polite smile with a warning tucked behind it.
The first half is pure party. "Cuando quiero, me amanezco" (when I want, I stay up till dawn), "Me enfiestaré dos, tres días" (I'll party two, three days), riding motorbikes with friends and cracking open "unas Tecatitas" (some little Tecates, a cute diminutive for Tecate beer). Racer is a nod to a fast car, and "darle duro a los botes" means going hard on the drinks.
Then the song shifts to business, and this is where it gets sly. He talks about "Las libretas que les vendo" (the notebooks I sell them), with a quality you won't find "ni en papelerías" (not even in stationery stores). Nobody is really selling notebooks here; it is a wink at a product he would rather not name. He cruises in a bimmer (BMW) or a Mercedes, keeps a low profile with "Obvio, no sabrán mi nombre" (obviously, you won't know my name), and drops a map of his turf: Culiacán, Sinaloa, Tijuana and San Diego. "Yo no ocupo seguidores" (I don't need followers) is a nice touch: in Mexican Spanish, ocupar often means "to need".