"Un Poquito" ("a little bit") argues that happiness isn't complicated at all. It is "juntar muchos poquiticos" (collecting lots of little bits). Poquitico is a double diminutive, very Colombian and Venezuelan, and the whole song is full of them: cafecito, ratito, rayito, pasito, calientico. If you want to hear how Spanish shrinks words to make them affectionate, this is your song.
The verses are small, specific pleasures: "un cafecito tempranero" (an early little coffee), "una llamada sin motivo" (a call for no reason), "un abrazo que no tenga prisa" (a hug that isn't in a hurry), sharing "un pan calientico" (a nice warm piece of bread). The chorus keeps landing on "y se alegra el corazón" (and the heart cheers up).
The bridge is the clearest lesson. Some steps "parecen cortos, pero te acercan a tus sueños" (seem short, but bring you closer to your dreams), and some giant ones lead nowhere. Life "no se conquista de un salto" (isn't conquered in one leap) but "pasito a pasito" (step by little step). It is sweet, a little like a greeting card, and great for vocabulary.