Inquieto translates to "restless" or "uneasy." It's a great word to describe a state of mind, especially when you're feeling a mix of excitement and nervousness.
In this song, the singer uses it to contrast his own anxious feelings with the calm demeanor of the person he's interested in: "Tú tan tranquila, yo siempre tan inquieto" (You so calm, I always so restless). It perfectly captures the tension and anticipation of trying to win someone over.
Have you ever been completely smitten with someone, but you're just too shy to make a move? That's exactly what Banda MS's "Romper El Hielo" [Break The Ice] is all about! Our singer is totally captivated by a beautiful face, admitting, "Aunque solo en mis sueños la pueda tener" [Even if I can only have her in my dreams]. He's dreaming big, but also a little stuck, wondering, "¿Cómo decirle? Es todo lo que quiero" [How do I tell her? She's all I want].
He's trying to get her attention with