Ocurrente is a fantastic adjective used to describe someone who is witty, clever, and says funny or surprising things. It comes from the verb ocurrir, which means 'to occur' or 'to come to mind'.
In the song, the singer says, 'Me encanta que seas tan ocurrente / De repente dices cosas que me vuelan la mente', which means 'I love that you're so witty / Suddenly you say things that blow my mind'. It's a perfect word to compliment the creative and spontaneous personality of his 'favorite person'.
This song is a super sweet and direct declaration of love. The singer has found their absolute favorite person in the world and wants to shout it from the rooftops! It's all about that amazing feeling when you meet someone and have an instant connection, like you've known them forever: "Desde el día en que te vi / Sentí como que ya te conocía" (From the day I saw you / I felt like I already knew you).
He loves everything about this person, especially their mind and how they share a similar fun-loving energy, saying "De locura casi estamos igual" (In craziness, we're almost the same). The whole song is basically a list of reasons why this person is the best, turning every moment into something special. It's a reminder that even if you don't say it all the time, it's always a good time to tell your favorite person that you love them.