"Hoy por tí, mañana por mí" is about empathy, not about literally expecting future reciprocation. In more practical terms, it's a polite way to refuse being rew

"Hoy por tí, mañana por mí" is about empathy, not about literally expecting future reciprocation. In more practical terms, it's a polite way to refuse being rewarded for something done out of kindness.